Well, they are still here, just sometimes in a different form. For example, shmups are still a thing – RagingBlasters is a prime example.
As far as platformers go, Shantae games are my overall favourites. Ever since debuting on GameBoy Color, I don’t think they ever strayed too far from their roots. Another honorable mention from me would be Blaster Master Zero – a remake of the original Blaster Master on NES.