What's the best growth hacking/marketing blogs/resources?

I posted last week about my solitaire game - https://www.indiehackers.com/post/how-i-grew-a-simple-solitaire-game-to-10k-mrr-28e352c308 - and it got so many great comments that I thought I'd ask the community for advice.

I've created this widget generator that will let you create a custom-branded solitaire game that you can embed on your own website: https://online-solitaire.com/embed. It's been my most successful SEO/marketing success so far.

I'd love to do some more growth-hacking projects and maybe even write a guest post or two on some growth-hacking blogs about my embed generator.

What blogs/resources do you like the most and do you have any suggestions for blogs you think would be interested in a guest post?