Which topics drive the most engagement (AI, personal branding)

Across 516,000 LinkedIn posts analyzed, AI topics hit 80–82 likes at the median — up to 4× the overall corpus median. Picking your topic before you write is one of the rare early decisions that genuinely moves the numbers.

In short

→ AI agents (82 median likes) and AI tools (80) dominate every topic category. → Personal branding is the top-performing non-tech topic, at 64 median likes. → The overall corpus median is 18 likes — the best topics do 3 to 4× that. → Volume and engagement don't go hand in hand: a highly-posted topic can still underperform. → Topic is a lever, not a guarantee — a poorly structured AI post will still flop.

Which topics perform best, backed by data?

From our analysis of 516,144 LinkedIn posts (9.6 million snapshots, 30,843 active profiles), here are the median likes by topic category:

| Topic | Median likes | |---|---| | AI agents (ai_agents) | 82 | | AI tools (ai_tools) | 80 | | Personal branding | 64 | | Technology | 53 | | Community | 52 | | Personal growth | 43 | | Corpus median (all topics) | 18 |

The ratio speaks for itself: AI topics outperform the overall median by more than 4×. Personal branding clears 3.5×.

These figures come from our internal database. As with any observational study, this is correlation, not causation. A sampling bias exists: creators who post heavily on AI often have larger networks, which pulls the medians up. Full methodology in the 516,000-post analysis.

Why does AI dominate so clearly?

Two effects stack on top of each other.

The audience effect. LinkedIn concentrates active decision-makers, managers, and founders. These are exactly the people trying to understand how AI is reshaping their field. The platform is structurally favorable to this topic.

The network effect. Creators who post on AI are often already well-established. The topic attracts both broad audiences AND domain influencers — a self-reinforcing advantage that inflates the medians.

Worth noting: volume doesn't equal engagement. Some heavily-posted topics (generic news, basic job-seeking content) drown in the feed and perform below the median. The categories in the ranking above outperform despite often lower posting volume.

Personal branding: the only topic no one else can write for you

64 median likes — 3.5× the overall median — and it's the topic with the most valuable property of all: no one else can write it in your place.

A post about AI tools from January 2025 is outdated in six months. A post about your career pivot, your first freelance win, or the mistake that cost you a major contract stays relevant two years later.

LinkedIn is fundamentally a professional reputation platform. Posts rooted in lived experience resonate directly with why people open their feed.

→ It's also the only topic where your credibility is immediate, regardless of how big your network is.

Community and technology: the solid middle ground

At 52–53 median likes, these two categories sit well above the overall median — without the cyclical tailwind of the AI moment.

They benefit from the same appeal with a tech and B2B audience, but with a longer shelf life for posts. If you want to build durable authority without specializing entirely in ChatGPT and agents, this is fertile and less saturated territory.

How to choose your niche topic

A few practical questions to clarify your direction:

→ You work in tech or AI? You have natural credibility in the categories dominating the ranking — use it. → You're a consultant, coach, or freelancer? Personal branding and lived transformations are your strongest ground, because your experience is your differentiator. → You're torn between multiple directions? Test 6 to 8 posts per topic over several weeks and look at what performs in your specific niche — not just the global benchmarks.

For methods to generate angles without starting from a blank page, see how to find LinkedIn post ideas. And if you want to identify your content pillars based on your profile and past performance, the LinkPost Strategy Agent maps out axes aligned with your editorial direction.

Two classic mistakes

Choosing AI without real expertise. If you post on AI without firsthand experience or a differentiated point of view, you drown in the feed. The high median is driven by creators with genuine expertise or an already well-built network.

Ignoring your precise niche in favor of the trending topic. A highly specialized topic — tech recruiting in Asia, finance for founders, automation in logistics — may have a lower raw median, but an exceptional engagement rate with exactly the right audience. The median engagement is a population-level signal, not an individual promise.

What to do next

→ Pick a topic from the high-performing categories, aligned with your actual expertise. → Pair the topic with a solid structure: strong hook, proof with numbers, long-form when relevant. → Stay consistent on your topic — LinkedIn rewards thematic regularity. → Track your own medians, not just the corpus benchmarks. → Test your post before publishing with the free post analyzer to see how it scores across 300+ factors.

Observational study by LinkPost (2020–2026, 62% French-language content, 516,144 posts). Medians by topic are correlations: creators who post on AI often have larger networks, which biases the medians upward. Correlation does not imply causation. Full methodology in the 516,000-post analysis.