This is a good question, to be clear, I’m just not sure I’m the right person to answer it. I’m putting this question out there and hoping someone can provide a better answer than I’d be able to.
I also haven’t been keeping up with my own research on headsets. Get something that can hook into a PC, because Android VR is a much more limited experience. To that end, you’ll need a PC that’s beefy enough to run VR, though that’s a little easier to spec toward than it was four years ago. If you’re on the fence about it, I would say to make sure you’re doing it for more than just VRChat — look into other VR games that might interest you, or other games that might otherwise take advantage of a mid-to-high-end gaming PC.