What other communities are like Indie Hackers?

I began using Indie Hackers just 19 days ago. In that time I have been impressed by all the different ways the community contributes to each others projects. I have personally benefited from feedback on my landing, to awesome marketing ideas, and even had a few Indie hackers sign up to try my tool.

I would love to find more place like this. Where should I look?

co-founder @ scribbl.co