>>282571375
>1070 or RX 570
A used 1070 is fine if you're on a budget, but a 570 would be a downgrade. If he's got more money to drop on it, I'd get a 2060 Super or 2070 Super, or wait for the 3000 series stuff in a few months.
>Your CPU is fine for VR
Yeah, but he'd be better off with one of the recent Ryzen processors, especially for stuff like VRChat that doesn't do well with multithreading. I'd upgrade the GPU first though.