Pick two. Almost everyone who asks this question is trying to decide between eight, and the honest answer is that two platforms done properly beat eight done badly by a large margin. Which two depends on one thing more than any other: what your buyer is already doing when they could encounter you.
There is no best platform. There are platforms that suit what you make and platforms that do not.
Start with the one question that matters
Are your buyers searching, browsing or working?
Searching means they have a problem and are typing it somewhere. That points at YouTube and Pinterest, both of which are search engines whose content keeps working for months.
Browsing means they are killing time and could be interrupted by something good. That points at TikTok, Instagram and Threads.
Working means they encounter you in a professional context, with a budget and a job title. That points at LinkedIn, and to a lesser extent X.
Most businesses have one dominant answer and one secondary one. Those are your two platforms.
How do the main platforms compare?
| Platform | Best for | Main format | Post length | Effort | Content shelf life | Posting API |
|---|---|---|---|---|---|---|
| Brand, community, visual products | Photo, Reels, Stories | Long captions | High | Days | Yes, app review required | |
| TikTok | Discovery from a standing start | Short vertical video | Long captions | Very high | Days | Yes, audit required |
| YouTube | Searchable and evergreen content | Video and Shorts | Title plus description | Very high | Months to years | Yes, quota-limited |
| B2B, recruiting, professional services | Text, document or PDF, video | 3,000 characters | Medium | Days | Yes, two separate apps needed | |
| X | Real-time, founders, developer tools | Short text | 280 characters | Medium | Hours | Yes, paid access |
| Planned purchases, seasonal, traffic | Tall images and video pins | Keyword descriptions | Low to medium | Months to years | Yes, review required | |
| Local business, communities, older audiences | Mixed | Long | Medium | Days | Yes, app review required | |
| Threads | Conversation, brands already on Instagram | Short text | 500 characters | Low | Days | Yes, app review required |
| Bluesky | Technical and journalism audiences | Short text | 300 characters | Low | Days | Yes, open and free |
| Google Business Profile | Anyone with a physical location | Short updates | Short | Low | Weeks | Yes |
Note: Figures here were verified against each platform’s own help centre and developer documentation as of September 2026. Platforms change these without notice.
That table deliberately does not include audience sizes, because they are the least useful number in this decision. Every platform on the list is large enough that its size is not your constraint. Whether your buyers are there, and whether you can make the format, are.
Which should you pick for your kind of business?
Physical products people plan for. Instagram and Pinterest. Instagram builds the brand, Pinterest converts the person who is planning a kitchen renovation. The detail is in Pinterest vs Instagram.
B2B software or services. LinkedIn, plus X if a founder is willing to post. Nothing else lets you reach people by job title. See LinkedIn vs X for B2B.
Local business with a storefront. Google Business Profile first, Facebook second, Instagram third. A Business Profile is the highest-return social surface most local businesses have and the one most of them neglect.
Consumer brand aimed at under-35s. TikTok and Instagram. If you are making video anyway, add YouTube Shorts, because it is the only one where the video keeps earning. Compared properly in TikTok vs Instagram Reels vs YouTube Shorts.
Developer tools or open source. X and Bluesky, and increasingly Bluesky specifically because of who moved there. See Bluesky vs X.
Creator or personal brand, text-first. Threads and one other text network. Threads vs X covers the main choice, and Threads vs Bluesky vs Mastodon covers the rest.
Education, tutorials, how-to. YouTube, and it is not close. Everything else on this list forgets you existed within a week.
Why not just post everywhere?
Because the effort is not evenly distributed and the failure mode is quiet.
Text networks are cheap to add. If you already write for X, adding Threads, Bluesky or Mastodon costs a rewrite of one sentence, and that is a genuinely good trade. Video is the opposite. A TikTok that works is a different edit from a YouTube video that works, and posting a horizontal YouTube video to TikTok because a tool made it easy produces something nobody watches.
The other cost is attention. Ten channels means ten inboxes, ten comment threads and ten sets of people expecting a reply. Abandoned accounts with unanswered comments look worse than no account at all.
The rule that survives contact with reality: duplicate freely across platforms of the same shape, and never duplicate across platforms of different shapes. That is the same argument we make in what is cross-posting, and the practical mechanics are in how to cross-post on social media.
How much should you post?
Less than the advice you have read, and more consistently.
Three good posts a week that you can sustain for a year beats fourteen a week for a month followed by silence. Every platform’s ranking rewards consistency, and every one of them punishes a gap. Pick a cadence you can hit in your worst week, not your best one.
If you are unsure whether the posting you already do is working, run the numbers rather than guessing with the engagement rate calculator.
The short version
Pick two platforms based on whether your buyers are searching, browsing or working. Searching points at YouTube and Pinterest, browsing at TikTok, Instagram and Threads, working at LinkedIn. Add a second text network freely, because the marginal cost is near zero. Do not add a second video platform unless you are willing to re-edit. And choose a posting cadence you can hold through a bad month, because consistency outperforms volume on every platform in the table.
When you do run more than one
BulkPublish publishes to 15 networks from a single composer, with per-platform text so the same idea can go out as a 3,000-character LinkedIn post and a 280-character X post without writing it twice. That is the case where running three or four channels stops being three or four times the work. See scheduling or pricing.