Tool to discover new substack

I've noticed a lot of people (myself included) struggling to discover new substack publications, so I had this idea the other day: what if there was a StumbleUpon (for those who remember back then), but just for Substack.

It'd be a simple Chrome extension where you set your interests, and then, with one click, it takes you to a random publication that fits your taste. You can keep clicking to discover more, leaving feedback as you go so it gets better at recommending stuff you’ll actually like.

I like building things for fun, so if this sounds useful to anyone, I’m happy to make it. Totally free, just for the community. Let me know what you think!

Question for you: How did you discover some of your favorite substack publications?