If you're looking to find more interesting content on YouTube you might want to check this out:

https://channelgalaxy.com/id%3DUCcefcZRL2oaA_uBNeo5UOWg/

They have lists of channels by similarity. That one is the list for the Y Combinator channel. You can look up a different channel in the search bar on top of the page.

I've definitely found a bunch of new channels through it, like Yannic Kilcher and pretty much the whole AI section of YouTube. Despite watching stuff like Robert Miles and Lex Fridman YouTube never showed me the depth of the AI section on its own. After I found it the YouTube algorithm started showing me videos in the new areas I was discovering which brought even more content.