Boguts been contemplating retirement for the past couple of years. I doubt he's looking for a big contract.
Tavares would at least give us a 7'3" practice player. He's moving pretty well on the Raptors 905 squad, but I doubt he could give you much in a playoff series as he just doesn't have the experience. He can block shots. He wouldn't get pushed around in the paint. Lots of possibilities as a player, though. He would be an interesting player to add with Capela. To get that kind of size cheaply isn't easy.
I'm guessing he picks either the Cavs or Celtics. One of those two teams is gonna represent the East in the Finals.
Most of the Bogut -> Celtics rumors I've seen have come from this random guy in Alabama https://twitter.com/Christheceltics\ And this reporter who keeps getting called out for fraudulence https://twitter.com/AdamHimmelsbach