Phoenix and Atlanta can't give Cleveland the pieces compete next year.
As the Suns won't give up Booker or Jackson. Atlanta isn't bottoming out.
Bucks gotta give up more than Brogdon and Middleton.
Denver can give up Harris and other solid pieces:
I think Miami offering Dragic and Winslow could happen. Dion-Kyrie electric buggalo 2 in Miami
It really depends on what Cleveland is willing to settle for.
Phoenix: Bledsoe (win now), Chriss or Bender (young prospect), draft picks, and then whether or not they're willing to include Josh Jackson. Phoenix has the best chance IMO to suit Cleveland's needs (besides Boston who I just don't think Cleveland is willing to deal with).
Atlanta: Schroeder (kinda win now but more of a young prospect still), some combination of picks, Bembry, Prince, etc.
Bucks: Middleton or Jabari, Brogdon, picks, Thon, Henson. Personally, I think Middleton, Brogdon and Henson for Kyrie and Shumpert improves Cleveland.
Denver: Too many pieces to list here.
Miami: Dragic (probably the best player anyone would offer), Winslow (I think he's terrible, but who knows).
Clippers: DeAndre, Beverley, idk what else they really have. I'm guessing they'd need to involve a 3rd team