Ratchet and Clank is a great series, and so are the Jak and Daxter series; both are excellent platformers for different reasons. Although, it might be easier to play Jak 1 and 2 through OpelGOAL, which will run the games natively on the Deck instead of emulation and isn’t too hard to set up.
It’s a bit of a black sheep, but Spyro A Heroes Tale is a guilty pleasure of mine. It isn’t as great as the original Spyro trilogy on PS1, but it’s entertaining in its own right. I’m currently playing through it and enjoying it.