One random one that jumps to mind is a game I routinely see bundled on fanatical dirt cheap.

Ugly starts a little slow, and I think the writing is just weird, but the some of the puzzles are really cool, and there's a good blend between pure puzzles and puzzles that require platformer execution.

I don't know that I would have paid $20, and I paid less than the $7 it's available for there now (it says for 10 hours), but I enjoyed what I played of it.

If you haven't tried them, give Ori a go. I finished Ori and the Blind Forest, it was amazing. Then I went on to Ori and the Will of the Wisps which builds on the first one. So in the first one you'll be unlocking stuff and in the second one you can still do all those things and some extra stuff you'll have to select according to the situation.

Beware though, some of the things they expect you to do can be challenging.

Play on PC if your monitor supports HDR, otherwise Switch'll do fine.

Braid Anniversary

Not sure if it counts as platformer but Talos Principle and Portal.

Does Shadow of the Colossus count? I didn't get very far in the game but I did enjoy the parts I did play of The Last Guardian.