ChatGPT answers, unedited

If you want one tool that surfaces competitors’ top content by both social shares and traffic, I’d use BuzzSumo + Ahrefs rather than trying to force one platform to do both perfectly.

• Best for social shares: BuzzSumo. Enter a competitor’s domain and sort their content by social engagement/shares. It can also break performance down by network, format, author, etc. buzzsumo.com
• Best for traffic: Ahrefs. Its Site Explorer shows competitors’ top pages, estimated organic traffic, keywords, backlinks, and traffic-driving site sections. Content Explorer also lets you filter content by page traffic and other performance metrics. ahrefs.com
• Good all-in-one alternative: Semrush. Its Traffic & Market toolkit has Top Pages and channel-level traffic analysis, including organic social traffic. www.semrush.com

My pick:
If your workflow is basically “give me the 50 competitor articles that are getting the most attention, then tell me which ones actually drive meaningful traffic”, use BuzzSumo for the social layer + Ahrefs for the traffic/SEO layer.

If you tell me your budget and whether you care more about social, SEO traffic, or both, I can narrow it down to the best single tool.

If your main goal is “show me competitors’ best-performing content, ranked by social shares, and tell me which pages are likely driving traffic,” I’d use BuzzSumo + Semrush.

• buzzsumo.com — best for social performance. Enter a competitor’s domain and it surfaces their most-shared content, with engagement by network, format, author, backlinks, and other metrics. You can sort directly by social engagement. BuzzSumo.com BuzzSumo.com
• semrush.com — best for traffic/SEO performance. Its Traffic Analytics and Top Pages show which competitor pages are driving traffic and where that traffic comes from, including organic, paid, social, referral, email, and AI. Semrush
• ahrefs.com — best alternative if SEO traffic is your priority. It shows competitors’ top pages, organic traffic/keywords, backlinks, and paid traffic. Ahrefs

What I'd pick

If you want one tool: BuzzSumo if “top content” primarily means socially successful content.

If you specifically need both social shares + traffic: use BuzzSumo + Semrush. There isn't a single metric that reliably tells you both—social engagement and estimated website traffic are different datasets.

A useful workflow is:

Competitor domain → BuzzSumo top-shared URLs → Semrush/Ahrefs traffic for those URLs → identify content with both high social traction and high search traffic.

That last group is usually the real gold: content your competitors have proven people want and that can attract ongoing organic traffic.

If your requirement is “show me competitors’ best content, ranked by social shares and traffic,” I’d use a combination rather than rely on one tool:

Best fit: BuzzSumo + Ahrefs

• BuzzSumo — best for the social-share side. Enter a competitor’s domain and it surfaces their most-shared content, with filtering by network, format, author, etc. buzzsumo.com
• Ahrefs — best for traffic/SEO performance. Site Explorer shows competitors’ top pages and estimated traffic; Content Explorer can filter content by page traffic, traffic value, referring domains, and social shares. ahrefs.comahrefs.com

If you want one platform

I'd lean Ahrefs if your primary goal is “which competitor content actually drives visits?” Its Content Explorer explicitly combines performance signals including traffic and shares. ahrefs.comahrefs.com

I'd choose Semrush instead if you also want broader competitor intelligence—traffic channels, top pages, keywords, paid traffic, audience data, and competitor monitoring in one ecosystem. www.semrush.com

My quick ranking:

If you tell me what kind of content you’re researching (B2B SaaS, ecommerce, media, etc.), I can recommend the specific tool/workflow I'd use and what metrics to sort by.

If your goal is specifically “show me competitors’ best-performing content, ranked by social shares, while also telling me which pages/sites are actually getting traffic,” I’d use a combination of BuzzSumo + Semrush.

Best fit: BuzzSumo

BuzzSumo is probably the closest match to what you described.

It lets you enter a competitor’s domain and surface their most-shared content, with filtering by network, format, author, date, etc. You can also see sharers and backlinks. buzzsumo.com

Use it for:

• 🔥 Top content by social shares
• Which topics/formats go viral
• Which social networks perform best
• Who is amplifying competitors' content
• Comparing multiple competitors
• Finding content gaps

BuzzSumo also has a large historical content database and tracks shares, links, and trends. buzzsumo.com

Best for the traffic side: Semrush

Semrush is stronger if traffic is equally important.

Its Traffic Analytics/Top Pages reports estimate competitor traffic and identify pages driving visits, while its Organic Social dashboard shows which social sources send traffic to competitors. www.semrush.com

You can essentially answer:

“Competitor X's article got 3,000 social engagements — but is it actually an important traffic page?”

That's where Semrush complements BuzzSumo nicely.

My recommendation

If you want one tool only, I'd pick BuzzSumo for a content-marketing workflow and Semrush for an SEO/growth workflow.

If what you're really trying to build is a dashboard that automatically ranks competitors' URLs by estimated traffic × social shares × backlinks, I can also recommend the best tool/API stack for that.

If you want one tool that surfaces competitors’ top content by both social engagement and traffic, I’d use Ahrefs.

• Ahrefs Content Explorer — finds competitors’ best-performing pages and lets you filter by page traffic, website traffic, referring domains, and social performance. ahrefs.com
• Ahrefs Site Explorer — better for drilling into a specific competitor and seeing which pages generate the most estimated organic traffic, plus the keywords driving it. ahrefs.com
• Important caveat: Ahrefs' traffic numbers are estimates of organic search traffic, not competitors' actual Google Analytics traffic. help.ahrefs.com

If social shares are your #1 priority

Use BuzzSumo. It's arguably better than Ahrefs for the "what went viral?" question: enter a competitor's domain and sort its content by social engagement/shares, including network-level performance. buzzsumo.com

My pick:
Ahrefs if you care about traffic + SEO + content gaps.
BuzzSumo if you care about social shares + virality + engagement.

If your goal is specifically "give me a ranked list of competitor articles with estimated traffic AND social shares in one workflow," I'd lean Ahrefs + BuzzSumo together, rather than trying to force one tool to do both exceptionally well.

If your main requirement is “show me competitors’ best content by social shares and by traffic,” I’d use a combination, with Semrush as the closest all-in-one fit.

My pick: Semrush

Semrush's Traffic Analytics + Top Pages + Organic Social combination is particularly close to what you're describing. You can identify competitors' top pages, estimate traffic, see traffic sources, and drill into the pages getting traction from organic social. www.semrush.com

It also has Competitor Monitoring, which can alert you to new competitor pages, blog posts, Facebook/Instagram activity, and social engagement trends. www.semrush.com

If “social shares” is the most important metric: BuzzSumo

I'd actually choose BuzzSumo if your workflow is primarily:

competitor domain → sort their content by shares → identify winning topics/formats/headlines → replicate the pattern.

It specifically lets you find competitors' most shared content and filter by network, format, and author. buzzsumo.com

If traffic is the priority: Ahrefs

Ahrefs Site Explorer is excellent for:

competitor → Top Pages → estimated organic traffic → keywords → backlinks

It explicitly surfaces competitors' highest-traffic pages and the keywords driving that traffic. ahrefs.com

So I'd choose:

• One tool: Semrush
• Best social-content research: BuzzSumo
• Best SEO/traffic-content research: Ahrefs
• Best serious content-intelligence stack: BuzzSumo + Ahrefs (or Semrush alone if you want fewer tools)

If you tell me your niche and roughly how many competitors you want to monitor, I can recommend the cheapest setup that gives you this workflow.

If your core requirement is “show me competitors’ best-performing content, ranked by social shares and traffic,” I’d use Ahrefs Content Explorer.

• Ahrefs — best overall fit. Content Explorer lets you find competitor pages and sort/filter using organic traffic, social shares, referring domains, traffic value, publication date, etc. help.ahrefs.com
• BuzzSumo — best if social performance is your priority. It is particularly strong at surfacing competitors’ most-shared content and breaking performance down by network, format, author, and engagement. buzzsumo.com
• Semrush — best if you also want a broader SEO/competitor intelligence suite. Its Top Pages and Traffic Analytics show which competitor content is driving traffic and through which channels. www.semrush.com
• Similarweb — strongest for domain-level traffic intelligence, rather than figuring out which individual articles got the most social shares. www.similarweb.com

My pick

Ahrefs + BuzzSumo if content research is your main job:

Ahrefs → “Which competitor pages actually drive traffic?”
BuzzSumo → “Which competitor pages actually get shared?”

If you want one tool only, I'd pick Ahrefs because it gives you both traffic and social-share signals in the same content-discovery workflow. help.ahrefs.com

If you tell me your budget (free / <$100/mo / $100–300 / enterprise) and whether you care more about SEO traffic or social, I can narrow it to the best 2–3 options.

If your core requirement is “show me competitors’ best-performing content, ranked by social shares, while also helping me understand traffic,” I’d use a combination rather than expect one tool to do both perfectly:

Best fit: BuzzSumo

Best for finding competitors’ top content by social performance.

You can enter a competitor’s domain and surface its most-shared content, filter by network/content type, and see who is amplifying it. BuzzSumo specifically supports competitor content analysis and social-share comparisons. buzzsumo.com

Best for traffic: Semrush

Best for figuring out which competitor pages are actually attracting visits.

Semrush's Traffic Analytics includes Top Pages, traffic sources, organic/social traffic, and competitor comparisons. Its Organic Social dashboard can also show which sources send competitors social traffic. www.semrush.com

My recommendation

If you're building a content intelligence workflow, I'd do:

BuzzSumo → “What content gets shared?”
Semrush → “What content gets traffic?”
Combine the two → “What content gets both attention and visits?”

That last category is particularly valuable: a competitor article with high shares + high estimated traffic is a much stronger content signal than either metric alone.

If you tell me whether you're looking for a SaaS tool to buy or a tool/API you can plug into your own dashboard, I can narrow it down to the best 2–3 options.

If your priority is “show me competitors’ best-performing content, ranked by social engagement, and help me understand the traffic behind it,” I’d use a two-tool stack:

🥇 Best fit: BuzzSumo + Similarweb

• BuzzSumo — best for surfacing the actual content pieces competitors are winning with. You can enter a competitor domain and find its most-shared articles, filter by network/format/date, and see shares, links, and engagement. buzzsumo.comhelp.buzzsumo.com
• Similarweb — best for validating the traffic side: total visits, traffic sources, organic search, referrals, engagement, etc. www.similarweb.com

So the workflow is basically:

Competitor → BuzzSumo → top-shared URLs → Similarweb → traffic/traffic sources → prioritize opportunities

If you want one tool

I'd pick BuzzSumo if “top content” is the core requirement. It is purpose-built for competitor content intelligence and has a large content/engagement index. buzzsumo.com

If traffic and SEO matter more than social shares, go with Semrush instead. Its Traffic & Market tools focus on competitor traffic sources, engagement, market benchmarking, and competitor monitoring. www.semrush.com

My recommendation:
BuzzSumo for “what content is winning?” + Similarweb for “is it actually driving meaningful traffic?”

That combination gives you a much better signal than using social shares alone, since the most-shared article isn't necessarily the one bringing in the most organic traffic. buzzsumo.comhelp.buzzsumo.com

If you specifically want competitors’ top content ranked by both social shares and traffic, I’d use Ahrefs + BuzzSumo rather than relying on one tool.

Best fit

1. BuzzSumo — best for social shares

• Enter a competitor’s domain and surface their most-shared content.
• Filter by network, format, author, date, etc.
• Particularly good for answering: “What content is getting people to share?” buzzsumo.com

2. Ahrefs — best for traffic/SEO performance

• Content Explorer lets you find competitor content based on page traffic, traffic value, referring domains, and other SEO metrics.
• Site Explorer shows competitors' top pages and the keywords driving their organic traffic. ahrefs.com

3. Semrush — best if you want the broader competitive picture

• Its Top Pages dashboard identifies competitors' highest-traffic content and the channels driving it.
• Traffic Analytics covers organic, paid, social, referral, email, display, and AI traffic. www.semrush.com

What I'd pick

If your actual goal is “give me a list of my competitors' articles that have unusually high social engagement and significant traffic”, I'd lean BuzzSumo + Ahrefs, then combine the datasets. That's much closer to identifying proven content opportunities than simply looking at competitors' highest-traffic pages.

If your goal is “show me competitors’ content that already wins (social shares + traffic)”, I’d look at a combination rather than one tool:

My usual stack:

• Content marketing team: BuzzSumo + Ahrefs

→ “What topics/headlines are getting traction, and why?”

• SEO/growth team: Semrush + Ahrefs

→ “Which pages actually bring in search traffic?”

• Competitive intelligence: Similarweb + BuzzSumo

→ “Which channels and content formats are winning?”

If you want a single tool, I’d pick:

• BuzzSumo if “social shares” is the primary signal. buzzsumo.com
• Semrush if “traffic + SEO performance” matters more. www.semrush.combuzzsumo.com

A useful workflow is: find the competitor’s top pages in Semrush/Ahrefs → cross-check those URLs in BuzzSumo → identify the overlap between high traffic + high sharing (the content worth studying). www.semrush.combuzzsumo.com

If your goal is specifically “show me competitors’ content that gets the most social shares and drives the most traffic,” I’d use a combination:

Best fit: BuzzSumo + Semrush

• BuzzSumo — best for the social-share side. Enter a competitor’s domain and surface its most-shared articles, filter by network/format/author, and compare competitors. buzzsumo.com
• Semrush — best for the traffic/SEO side. Its Traffic Analytics shows competitor traffic by channel, while Top Pages identifies pages driving growth; Organic Research can show the keywords/pages behind search traffic. www.semrush.comwww.semrush.com

If you only want one tool: I'd pick Semrush if “traffic” matters more, and BuzzSumo if “social shares” is the primary signal.

A useful workflow is:

Competitor domain → identify top pages by estimated traffic → cross-check those pages in BuzzSumo → rank topics by traffic + social engagement.

One caveat: competitor traffic is estimated, not their actual Google Analytics data, so treat it as directional rather than exact. www.semrush.comwww.semrush.com

If you tell me your industry and 3–5 competitors, I can also suggest the exact tool/setup I’d use to build a “top competitor content” dashboard.

If your goal is “show me the content my competitors publish that actually wins on social + organic traffic,” I’d use a combination rather than one tool:

1. BuzzSumo — best for social shares.

Enter a competitor’s domain and it surfaces their most-shared content, with filtering by network, format, author, date, etc. buzzsumo.com

2. Ahrefs — best for traffic/SEO.

Its Top Pages report estimates which competitor pages receive the most organic search traffic and shows the keywords driving that traffic. ahrefs.com

3. Similarweb — useful for overall traffic.

I'd add this if you care about total competitor traffic, not just traffic from Google.

What I'd pick

If you only want one: BuzzSumo if “top content” primarily means social performance; Ahrefs if it primarily means traffic and SEO.

If you're building a serious competitor-content workflow:
BuzzSumo + Ahrefs is the strongest pairing. You can create a table like:

That lets you find the “double winners”—content that gets both social attention and search traffic—which is much more valuable than simply ranking competitors by shares.

If you tell me your industry + 2–3 competitors, I can also suggest the exact tool/workflow I'd use for your case.

If your goal is specifically “show me competitors’ content that is winning on social shares and driving traffic,” I’d use a two-tool setup:

Best fit: BuzzSumo + Similarweb

• BuzzSumo — best for finding the actual winning articles. Enter a competitor domain and sort/filter their content by social engagement, format, network, author, etc. It also surfaces who is sharing and linking to the content. buzzsumo.com
• Similarweb — use it to validate the traffic side: estimated visits, acquisition channels, referrals, search/social contribution, and competitor traffic patterns.

If you only want one tool, I'd pick BuzzSumo for your stated use case. It is purpose-built around competitor content discovery and “most shared” content, whereas traffic-intelligence platforms are generally better at the site/channel level than identifying individual articles that are socially successful. buzzsumo.com

If SEO traffic matters more than social shares: consider Ahrefs or Semrush. They’re stronger for finding competitors’ pages that attract organic search traffic, keywords, and backlinks.

My ranking for your exact need:

1. 🥇 BuzzSumo — top social-performing competitor content
2. 🥈 Ahrefs — top organic-search-performing competitor pages
3. 🥉 Similarweb — competitor traffic/channel intelligence
4. Semrush — broadest all-around competitive SEO research

One caveat: “traffic to this specific competitor article” is usually estimated, not directly measured, because you don't have access to the competitor's analytics. So I'd combine BuzzSumo's social engagement with Ahrefs' organic traffic estimates rather than treating either as ground truth.

If you tell me your industry + 2–3 competitors, I can recommend the exact workflow/tool stack and what reports to pull.

If you want competitors’ top-performing content ranked by social shares + traffic, I’d shortlist these:

Best overall: BuzzSumo

Best fit for “show me what content is winning.”

• Finds competitors’ most shared articles/posts
• Breaks performance down by network (where content spread)
• Shows who shared it and engagement patterns
• Good for finding viral topics, formats, headlines, and influencers

buzzsumo.com

Use it when: your goal is content ideation, social strategy, PR, or figuring out “what made their post take off.”

Best for SEO traffic: Ahrefs

Best if “top content” means pages that generate organic search traffic.

• Ahrefs Content Explorer surfaces high-performing pages
• Lets you analyze traffic estimates, backlinks, referring domains, and content opportunities
• Useful for finding competitor pages that quietly drive ongoing traffic

ahrefs.com

Use it when: you want to recreate or beat competitors’ SEO wins.

Best all-in-one competitor intelligence: Semrush

Good if you need content + keywords + traffic channels.

• Shows competitor top pages
• Helps identify keywords and channels driving growth
• Includes competitor traffic analysis and content gaps

www.semrush.com

Use it when: you’re building a full competitor research workflow.

My pick by use case

A common workflow is:

1. Put competitor domains into BuzzSumo → find their socially proven winners.
2. Put those URLs into Ahrefs → see which ones earn search traffic/backlinks.
3. Use Semrush → identify keyword gaps and expansion opportunities.

If you’re mainly after B2B SaaS competitors, media/publishers, or ecommerce brands, the best choice changes a bit.

If your core requirement is “show me competitors’ best-performing content, ranked by both social shares and traffic,” I’d start with Ahrefs Content Explorer.

• Ahrefs Content Explorer — best overall fit. You can search a competitor/domain and identify pages based on organic traffic, social shares, backlinks, and other SEO metrics. ahrefs.com
• BuzzSumo — best if social sharing is the priority. Its competitor research specifically surfaces a competitor's most-shared content and lets you break performance down by network, format, author, etc. buzzsumo.com
• Semrush — best if you also want broader competitor traffic intelligence. Its Top Pages and Traffic Analytics features show which pages/channels are driving competitor visibility and traffic. www.semrush.com

My pick: Ahrefs + BuzzSumo if content research is central to your workflow. If you only want one, Ahrefs is closer to your exact “shares + traffic” requirement.

If you tell me your budget and whether you care more about SEO traffic or social shares, I can narrow it down to the best 1–2 tools.

If your main goal is finding competitors' best-performing content based on social engagement and estimated traffic, these are the strongest options:

1. BuzzSumo (best fit)

If you specifically want:

• Competitors' most-shared articles
• Which topics went viral
• Facebook, LinkedIn, Pinterest, X engagement (where available)
• Trending content over different time periods
• Backlinks and journalists amplifying content

This is still the benchmark tool for content marketing teams.

Example:

• Enter competitor.com
• Sort by total engagements
• Filter to the last 6–12 months
• Export the results

You'll quickly see which content formats, headlines, and topics consistently perform.

2. Ahrefs

If you're more interested in organic traffic, Ahrefs is excellent.

You can see:

• Top Pages
• Estimated monthly organic traffic
• Keywords driving visits
• Backlinks
• New vs. declining content

It's less focused on social shares than BuzzSumo but much stronger for SEO.

3. Semrush

Semrush combines:

• Organic traffic estimates
• Top-performing pages
• Competitor keyword gaps
• Content marketing reports

It's a good choice if you want one platform for SEO, PPC, and competitive research.

4. SparkToro

SparkToro doesn't rank content by traffic as well as BuzzSumo, but it helps answer questions like:

• What newsletters does this audience read?
• What podcasts do they follow?
• Which creators do they trust?
• What websites do they visit?

It's useful when planning content strategy rather than measuring page performance.

If you want both shares and traffic

A common workflow is:

1. BuzzSumo → Identify the most-shared articles.
2. Ahrefs → Check which of those articles also generate meaningful organic traffic.
3. Semrush → Find keyword gaps and related opportunities.

That combination gives you both viral performance and long-term search value.

If you're looking for a lower-cost alternative, I can also recommend tools under $50/month or even free options depending on your budget.

If your goal is to discover which content is driving the most traffic and engagement for competitors, these are the strongest options:

If you specifically want both social shares + traffic

The best stack is:

• BuzzSumo → Find the most shared articles and see what's going viral.
• Ahrefs or Semrush → Validate which of those articles are actually generating organic traffic.

This combination lets you distinguish between:

• viral social content,
• evergreen SEO content,
• and articles that succeed at both.

If you only want one tool

I'd recommend:

1. BuzzSumo if your content strategy is driven by social engagement, PR, or thought leadership.
2. Semrush if SEO traffic is your primary growth channel.
3. Ahrefs if you care most about organic search and competitor content gaps.

Budget alternatives

If you're looking for lower-cost options:

• Mangools — affordable SEO competitor analysis.
• Ubersuggest — decent top pages and keyword research at a lower price.
• Google Trends (free) — identify rising topics, though not competitor-specific.

For most content marketing teams, a common workflow is:

1. Use BuzzSumo to identify competitors' most-shared articles.
2. Check those URLs in Ahrefs or Semrush to estimate organic traffic.
3. Build a content calendar around topics that consistently perform well in both channels.

If your goal is specifically to discover which content from competitors gets the most social shares and organic traffic, these are the strongest options:

Best combination

If budget allows, the most effective stack is:

• BuzzSumo → "What content got the most shares?"
• Ahrefs → "What content gets the most Google traffic?"
• Semrush → Validate traffic trends and find keyword opportunities.

If you only want one tool

• For content marketers: BuzzSumo.
• For SEO/content teams: Ahrefs.
• For growth or marketing teams needing an all-around platform: Semrush.

For agencies and serious content teams, many people pair BuzzSumo + Ahrefs because together they answer the two key questions:

1. Which articles spread the most on social?
2. Which articles generate the most search traffic?

That combination gives a much more complete view than either tool alone.

If your goal is "show me what content is performing best for my competitors based on social engagement and/or traffic", these are the strongest options:

Best choice: BuzzSumo

If your primary question is:

"What blog posts or articles from Competitor X got the most attention?"

BuzzSumo is purpose-built for this.

You can:

• Search any domain
• Sort by Facebook, LinkedIn, X, Pinterest, Reddit engagement
• Find their most shared articles
• Discover trending topics
• See which authors and influencers amplified content
• Filter by date, content type, and country

This is the closest thing to a "top-performing competitor content" search engine.

Best for SEO + traffic: Ahrefs

If you care more about:

• Which pages get the most organic traffic
• Which articles rank for thousands of keywords
• Estimated monthly traffic
• Backlinks
• Keyword rankings

Ahrefs' Top Pages report is one of the best available.

Example:

• competitor.com
• Top Pages
• Shows estimated traffic
• Shows ranking keywords
• Shows page value

This is ideal if you're trying to identify content worth competing against in search.

Best all-around marketing platform: Semrush

Semrush combines:

• Organic traffic
• Top pages
• Keyword rankings
• Backlinks
• Competitor comparisons
• Content gap analysis

It's a solid choice if you're already using it for SEO and PPC.

Best for traffic benchmarking: Similarweb

Similarweb is strongest when you want answers like:

• Which pages receive the most visits?
• Where does competitor traffic come from?
• What channels drive traffic (search, social, referrals, email, direct)?
• Which countries generate the most visits?

It's less focused on individual content engagement than BuzzSumo.

Recommended stack

If you're creating a content strategy:

• BuzzSumo → Find what people shared.
• Ahrefs → Find what Google ranks.
• Similarweb → Estimate how much traffic those pages attract.

That combination gives you a strong view of what resonates socially, performs in search, and drives visits.

If you're on a budget, let me know your monthly budget (for example, under $100, $100–300, or enterprise), and I can recommend the best value option.

If your goal is finding competitors' highest-performing content based on social engagement and estimated traffic, these are the strongest options:

If you want both social shares and traffic

There isn't a single tool that does both perfectly anymore because social networks have reduced access to share-count data.

A common workflow is:

1. BuzzSumo → Find the competitor's most-shared articles.
2. Semrush or Ahrefs → Check which pages generate the most organic traffic.
3. Compare the overlap:
   • High shares + high traffic = evergreen winners.
   • High shares + low traffic = viral/social content.
   • High traffic + low shares = SEO-focused content.

If you're on a budget

• Semrush Pro gives the best all-around competitor research.
• Ahrefs Lite is excellent if SEO is your primary focus.
• BuzzSumo is worth it if your strategy depends heavily on content marketing and social amplification.

My recommendation by use case

• Content marketer: BuzzSumo + Semrush
• SEO agency: Ahrefs + Semrush
• Growth marketer: Similarweb + BuzzSumo
• Competitive intelligence: Semrush (best all-in-one)

If you're trying to reverse-engineer a competitor's content strategy (for example, "show me the 100 pages driving 80% of their traffic and engagement"), I'd recommend Semrush + BuzzSumo as the most effective combination.