Wallin, Clarke, Franklin, Miller, Makhmudov, Joyce..that is a safe level for him.
He will lose to anybody top 10.
These are all incredibly terrible options, horrendous. Wilder is 40 years old, past his best, and at the twighlight of his career. Why in the world would he risk his health and whatever boxing capital he has left to fight guys who have little to no name recognition, but could still beat him, for what? He's not a young up and comer who is looking to build his resume, he's an old vet who is looking to capitalize and cash in on his final few fights.
The name that makes the most sense for Wilder is AJ, and or Usyk if Usyk grants him a shot. Either of these fights would grant Wilder a huge payday and comfortably send him off into retirement.
Zhang rematch
Anybody that wants Wilder to fight any live body is a masochist at this point as he is KTFO victim against anybody in the top 20 that has any offensive ability.
Wilder is so far past his prime, that fight was rough to watch at times. They had some decent exchanges but Wilder's punches never had the snap on them. They all looked like arm punches. At times they looked in slow motion. He's so far over the hill, it's crazy how gone he is.
I personally will be fine if I never see him fight again.