Depends on age, but Minecraft is probably the best thing you could hope for a kid to get into, assuming you expect them to get into videogames in the first place. Load it up with mods like Create https://www.youtube.com/watch?v=rR8W-f9YhYA
>but it's a cringe kids game
Yes. Kid stuff is cringe to an adult, that's just how it is.
>but they should only like things that I, a 25+ year old adult like
No.
I would avoid anything that encourages you to shut off your brain, such as FPS games or open world combat types (unless they involve complex exploration), although I have the impression that kids tend to be more into mentally stimulating games than adults are. I'd probably look for sandbox-ish games where you do some kind of self-directed problem solving, I don't have a good example but maybe something like TerraTech. Teardown sounds good but I recall it being somewhat difficult, though I only played it when it first went 1.0.
You can probably find good niches within Roblox, but that's a rabbit hole I wouldn't want to go into myself and I hear it's super monetized.
I have fond childhood memories of games like Ocarina of Time because of the adventure and mystery, even though I never got even a third of the way through it. Something like that might be good too, like CrossCode (the puzzles might become a problem though).
It might be good to introduce them to games where you don't play as characters directly, could widen their view of games. Rimworld is the only game that comes to mind, but that's probably too complicated. From Dust isn't exactly a kids game but I might have been enamored by it if I played it as a kid.
Depending on how autistic they are, the older ones might like messing around with Universe Sandbox or Powder Toy.