Reddit Hot Topics Extractor – Subreddit Scraper + Filtered Insights ( n8n )

This automation turns Reddit into a high-quality topic mining engine.

Send a webhook with a subreddit + keyword, and the workflow searches Reddit’s hottest posts, filters insights, and returns only high-value posts (ups > 3).

Perfect for:

• Social media content ideas

• Industry trend research

• Keyword monitoring

• Community insights

• Market intelligence

WORKFLOW FEATURES

1. Webhook Entry Point

Send:

• subreddit

• keyword

• sorting preference
  Workflow begins instantly.

2. Dynamic Field Editor

The workflow rewrites your webhook inputs using dynamic expressions:

• Subreddit

• Keyword (n8n + your keyword)

• Sort type (hot)

3. Reddit Search Engine

Scrapes top 15 posts from your chosen subreddit with filters:

• keyword

• hot sorting

4. IF Filter – Only Quality Posts

Only returns posts with more than 3 upvotes.

5. Auto-Response Module

Webhook responds with only the filtered items.

WHAT IT CAN BE USED FOR

• Topic discovery for YouTube, IG, TikTok

• Trend monitoring

• Market research

• Meme sourcing

• Comment mining

• Customer pain point discovery

WHY THIS SYSTEM IS POWERFUL

Instead of browsing Reddit for hours, you press one button… and instantly receive filtered, high-signal insights from your target communities.