Puzzle games are great if you just want to relax and not play something stressful.

Limbo spawned a horde of copycat indie games in the same vein. Although they were all kind of forgettable because I can't remember any off the top of my hat.

Personally I prefer puzzle games like Minesweeper, Hexcells, etc. The occasional hidden object game is fine too. Been playing https://skribbl.io/ lately, although that gets repetitive fast.

Maybe the Trine series is for you. Those are puzzle platformers. Haven't played that one since the first one, though.