How to find X (Twitter) users by keywords in their bio (2026): X search, Google and 5 bio search tools

Quick answer

X has no bio-only search, so pick your way by how many accounts you need:

• A few accounts: search your words on X and open the People tab, or search Google with site:x.com "founder" "SaaS".
• A list with filters: a bio search tool (Sorsa, Fedica, Circleboom, Weir) searches bios and exports a CSV.
• A list in your sheet, from your AI agent: Reduck lets Claude or ChatGPT search X as you, keep the accounts whose bio holds your words and write them to a Google Sheet.

Why it's hard

Founders, sales teams, recruiters and marketers search bios to find people by who they say they are: "founder" and "SaaS", "CTO", "Python developer". But X search is built for posts. Its People tab matches names, handles and bios together, so a job title also returns companies and bands with the word in their name, and it has no filter for followers or location and no export. Followerwonk, the classic bio search tool, moved into Fedica's paid plans.

Every way, compared

As each tool's own page describes it, read on October 27 and November 13, 2026.

Step 1: A few accounts, with X or Google

1. Search your words on X, for example founder SaaS, and open the People tab.
2. Open the profiles and keep those whose bio, not only the name, holds your words.
3. For more, search Google with site:x.com "founder" "SaaS", adding a city or a tool to narrow it.

Step 2: A list, with a bio search tool

1. Start free with Sorsa or Weir; use Fedica or Circleboom for larger lists.
2. Enter your bio keywords, with AND, OR and NOT where the tool supports them: (founder OR CEO) AND SaaS NOT recruiter.
3. Add a follower range or a location, then export the CSV.

Step 3: A list in your sheet, from your AI agent

Your agent runs X's People search in your own Chrome, where you are signed in to X, once per keyword. It gets up to 100 accounts per search with handle, bio, location, website and follower counts, keeps the bio matches, applies your filters and writes the list to your Google Sheet.

1. Create a free account at reduck.ai.
2. Install the Reduck extension in Chrome and pair it.
3. Connect Reduck to your agent: docs.reduck.ai.
4. Ask: "Search X for accounts whose bio mentions {keywords}. Keep only the ones where the words are in the bio itself, with {min} to {max} followers and a post in the last 30 days. Put handle, name, bio, location, website and followers in a Google Sheet, best fits first."

X does not show every match, so give your agent several keywords for one niche. For filters, limits and B2B prospecting, see X bio search with your AI agent.