Have a YT Channel? this n8n automation is for you

Marketing through YouTube is a requirement, if you wish to create a funnel for your products or freelance work.

As of May 27th 2025, I have 79 subscribers with a goal of 100 by June 15th and 1000 by September 1st 2025.

The reason is that YouTube helps grow one's brand and product reach.

So I created a workflow using n8n that finds promising Reddit threads to market my YouTube videos and to generate a thoughtful reply to said post in my tone.

How It Works

1. A user submits their YouTube video URL and email through a form.

2. The workflow analyzes the YouTube video's title, description, and tags to extract relevant keywords and create a custom AI classification prompt.

3. It searches Reddit for posts containing those keywords and filters them based on engagement metrics

   1. upvotes > 15

   2. non-empty text content

   3. posted within the last 14 days

   4. upvote ratio > 0.95

4. An AI agent (using OpenRouter's GPT-4.1-mini) classifies each filtered Reddit post to determine its relevance to your YouTube video.

5. For relevant posts, another AI agent (using OpenRouter's Gemini-2.0-flash-lite-001) generates a humanized, authentic comment designed to subtly reference your video and add value to the Reddit discussion.

6. Relevant posts and their proposed comments are stored in Google Sheets.

7. A professional HTML email digest is generated, summarizing the marketing opportunities.

8. The email is sent to the user's provided email address.
   

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