Practical guide: how to find someone on Reddit fast

1. Manual ways to find someone on Reddit

Before you automate anything, you need to understand the native tools Reddit gives you. These are the same steps you’ll eventually teach an AI agent to follow.

1.1 Use Reddit’s main search bar

1. Go to https://www.reddit.com/ and make sure you’re logged in.
2. In the search bar, type what you know: a username (u/username), part of a username, or keywords from a post they wrote.
3. Press Enter and filter the results:
   • Use the Posts, Communities, and People tabs.
   • Click People to see accounts matching the query.
4. Open promising profiles in new tabs and check their post history for familiarity.

Reddit’s general help center is here: https://support.reddithelp.com/hc/en-us

1.2 Go directly to a profile URL

If you know or strongly suspect the username:

1. In your browser, go to https://www.reddit.com/user/USERNAME (replace USERNAME with the handle).
2. If the page loads, review their Posts and Comments tabs.
3. Use browser search (Cmd/Ctrl+F) on their profile to find specific keywords you remember.

1.3 Search within a specific subreddit

If you know where they hang out (for example, r/marketing):

1. Visit https://www.reddit.com/r/marketing/.
2. Use the search bar at the top and toggle Search within r/marketing.
3. Enter keywords you remember from their posts, plus author:username if you know it.
4. Sort by New or Top to surface different timeframes.

1.4 Use advanced search operators

Reddit supports some practical search patterns via its search bar and standard web search:

• author:username – show posts by that author.
• "exact phrase" – find posts containing an exact phrase.
• Combine with Google: "phrase" site:reddit.com.

Steps:

1. In Google, search something like "their phrase" site:reddit.com.
2. Open likely Reddit posts and check who authored or commented.
3. Click the username to open the profile.

1.5 Check your message and notification history

If you’ve ever interacted with them:

1. On Reddit, click your avatar > Messages or Chat.
2. Scroll your inbox or use browser search to look for their name or topic.
3. From any DM or comment reply, click the username.

These manual methods are reliable but time-consuming, especially when you’re doing this weekly for prospecting or community research.

2. No-code ways to semi-automate Reddit people search

Once you understand the manual flow, you can reduce repetition using no-code tools and simple spreadsheets.

2.1 Track Reddit search results with RSS + spreadsheets

Most Reddit listing pages can be turned into RSS feeds by adding .rss to the end of the URL.

Example:

1. Build a search URL such as https://www.reddit.com/search/?q=author%3Ausername.
2. Append .rss to get https://www.reddit.com/search/?q=author%3Ausername.rss.
3. Use a no-code tool (like Zapier, Make, or IFTTT) with an RSS trigger.
4. For each new item in the feed, push the post URL, author, and title into Google Sheets.
5. In Sheets, filter rows where the author matches the person you seek or looks similar.

This doesn’t magically identify a person, but it continuously surfaces posts from likely matches without you refreshing search pages all day.

2.2 Build a simple prospecting database

If you’re a marketer, agency, or founder using Reddit to discover leads:

1. Create a Google Sheet with columns: Lead name, Clues, Suspected username, Profile URL, Status.
2. Use manual search (section 1) to populate initial guesses.
3. Layer in a no-code tool:
   • Trigger: New row added or updated.
   • Action: Open the Reddit profile URL via a link-check module (or a lightweight script) and confirm if it exists.
4. Use conditional formatting to flag broken or private profiles for manual review.

This gives you a lightweight system for managing “who we think this Reddit user is” without losing track across tabs.

2.3 Automate alerts for keyword + author patterns

If you don’t know the username but know where and how they speak, you can track patterns:

1. Identify 3–5 subreddits they’re likely active in.
2. Build RSS feeds for those subreddit searches (e.g., https://www.reddit.com/r/marketing/search?q=your+keywords&restrict_sr=1.rss).
3. In a no-code tool, trigger on new feed items.
4. Filter by:
   • Titles or body text matching your remembered phrases.
   • Comment counts or upvotes (to focus on meaningful activity).
5. Send yourself a Slack or email notification with link and author.

Suddenly you’re not “searching” all the time; you’re just responding to qualified alerts.

3. Fully automated, at-scale Reddit search with an AI agent

Manual and no-code flows work until volume explodes. When your team needs to identify dozens or hundreds of Reddit users each week, you want an AI computer agent that behaves like a power user.

Simular’s Simular Pro (https://www.simular.ai/simular-pro) is designed exactly for this: an autonomous computer-use agent that can drive your browser, work across spreadsheets, CRM, and Reddit, and execute multi-thousand-step workflows reliably.

3.1 Agent workflow: from lead list to Reddit profiles

Imagine you have a list of names or email handles in Google Sheets and you want likely Reddit accounts.

You can configure a Simular Pro agent to:

1. Open your lead sheet.
2. For each row, derive candidate usernames (e.g., from email handles).
3. Launch a browser, go to https://www.reddit.com/, and run a search for u/handle and variations.
4. Open the People tab and candidate profiles.
5. Evaluate matches based on:
   • Overlapping interests (subreddits that match your industry).
   • Post topics or keywords.
6. Write back the most likely profile URLs, plus notes, into your sheet or CRM.

Pros:

• Scales to hundreds or thousands of leads.
• Every click and action is transparent and inspectable (a core Simular Pro feature).
• Integrates with your existing stack via webhooks.

Cons:

• Requires an initial setup and some prompt design.
• You still need clear rules about privacy and outreach ethics.

3.2 Agent workflow: monitor subreddits and map people

For community-led growth or agency research, you might care less about one specific person and more about “people like them”. An AI agent can:

1. Open a list of target subreddits (e.g., r/marketing, r/SEO, r/startups).
2. Sort by Top or New posts within selected time windows.
3. For each post, extract:
   • Author username.
   • Karma, age of account, and posting frequency.
   • Topics and sentiment of recent comments.
4. Rank users based on criteria you define (e.g., potential influencer, ideal customer profile, or hiring candidate).
5. Log results into a central sheet or database for your sales or recruiting team.

Pros:

• Transforms scattered Reddit activity into a structured prospecting asset.
• Runs on autopilot daily or weekly.

Cons:

• Needs guardrails to avoid aggressive data scraping.
• Works best when coupled with clear internal policies.

To learn more about how Simular thinks about agents and long-running workflows, see the About page: https://www.simular.ai/about

Once you nail the manual process, then the no-code scaffolding, letting an AI agent take over is like hiring a full-time Reddit researcher that never gets tired, forgetful, or distracted.