The only true way to find out is to start talking to recruiters or getting offers.
By non-FAANG, I guess I mean some combination of:
1. Companies your uncle might not have heard about (by this I mostly mean not AirBnB or Uber)
2. As an extension of #1, probably b2b
3. Headcount somewhere in the 20-150 neighborhood
4. Probably something established, not seed-stage or a venture rocketship
5. Somewhat less onerous interview processes. I don't mind fun algo and design problems, but I would rather not have to prep for 4 months to have speed leetcode thrown at me for 8 hours
This is all just off the top of my head, though. And I know that all 5 in one company is a lot to ask for.