I don't know. UFC LHW is definitely thin now, but Vera lost to Keith Jardine, an ancient version of Couture, took a beating from Thiago Silva, etc. If he could still make LHW (a big IF at this point), he'd be really drained and probably affected by the weight cut. At the very least, I think these guys would beat him:
Gus (easily)
Volkan
Glover
Latifi (strong wrestler...the type that always bullied Vera)
OSP
I wouldn't be surprised if Cummins, Manuwa and some other guys could also beat him--I'd give them at least a 50/50 chance. And of course if Cormier, Jones or Rumble return, they'd beat him with ease.
Who beats USADA Vera?