good dinosaur games on switch?

Jurassic World Evolution Complete Edition if you like park building. It runs fine handheld once you get used to the controls being squeezed onto a pad. ARK is on there too but the port is rough, I wouldn't. For something older, the Jurassic Park Classic Games Collection is a fun bit of nostalgia, and the Turok remasters hold up better than you'd expect, Turok 2 especially.