Jones vs DC
Sakuraba vs the Gracies
Anderson vs Chael.
We all know if they ever make one it will be Ronda or Conor and I don't even have a problem with that honestly. The rise and fall of Ronda Rousey seems like a super easy one to make even though you'd never get her to talk on it
As for what I'd want to see personally, I'd love one on Anderson vs Chael. They could do a number on that. The call outs, the fights, the steroids... it had it all man