Swipe Directory is a no-code side project created by me. It's a curated collection of 170+ highly valuable resources and tools in marketing.
It is categorized into 16+ types. You can even search and filter according to keywords.
Swipe Directory is made just using Google Sheets, with the help of SpreadSimple.
This project makes me $200/month.
I have shared my learnings and insights in a blog post.
Let me know if you have any questions.