Got a long road trip coming up and looking for a recommendation: Shovel Knight:TT, Hollow Knight, Celeste, or Lego Marvel Superheroes 2?
I'd recommend Shovel Knight (my favorite indie ever), but whatever you do, do not buy Lego Marvel on Switch. I bought it at release and beat it (it's a fantastic game), but it is filled with game breaking bugs just on the Switch and last WB acknowledged it (In June) they said there's no plans to patch the Switch version. The glitches begin really heavily about halfway through the game (freezing and crashing to dashboard), so if you don't think it'll bother you that much then feel free to pick it up, but remember to save often. I lost three hours of progress with it in free roam and that was kind of my final straw for the Switch version.
Runs great on Xbox and PS4 though!