Best, Affordable Learning Resources on Exploits

Hello,

I recently spent a good amount on the GTO Statchecker course for H2N, along with the popups and filters Mobius provides. At one point he establishes this is more stat checking, and not much of any discussion on exploits.

To that end. What are some good, resources out there to learn more about exploiting leaks? I'm open to paying for a course if there's one that's really worth it, although I was keen to see if there are people on Youtube, blogs or other free platforms I'd to well to look up first or instead.

Thank you.