If he sticks to tradition, Argentina.

If he tries to go home to his handlers, Russia. I doubt he would be very welcome except as a PR stunt from having a former US president hiding from his crimes in Russia.

Of course we all know he's really going to be hiding out in the basement of a certain pizza place.

ram ranch

Moscow or Riyadh. Possibly Pyongyang.

He and Bashar al-Assad can share a dacha. Make the Bolsonaros the wacky father-son neighbors and you've got a great sitcom premise