The MI350p exists and should run a decent quant (say, the ~96GB antirez mix) well, but you can get two rtx pro 6000s for one of these, or 8x (actually more) r9700 + probably the gear to run them, etc.
Otherwise, you can probably buy one of these second hand from somewhere (SXM A100s are available that way) and run it in an adapter board.
I thought MI350P wasn't available yet, curious where to source it right now.
There's at least one systems integrator selling a rack server with 2x MI350Ps.
I haven't seen the cards all by themselves yet.