hiring.cafe Seems like a promising job board--not just another board that pulls jobs from LinkedIn. Just make sure you filter by jobs posted in the past 24hrs, and apply on the company's website.

I've seen https://www.dataannotation.tech/ around for a while. Did some research and they do seem to be legit based on what Reddit folks have said. There's a general one that pays $20hr, and there are specialized ones for Programming, Chemistry, Physics, Law, etc). Worth checking out!