If Miami shows any interest in him, it'll be his next team. I think Melo's going to stay away from Championship or bust expectations. He's been the publicly humiliated in 3 different situations now. It's Miami, Wade is there, expectations are low, and Whiteside is there to cover for him defensively.
Outside of Miami, NO and Utah are the best situations because he'll be able to close out games in markets that aren't as demanding and have the best shotblockers to cover for his defensive weaknesses.
The Lakers and Sixers are terrible situations for him. If the criticism and demotion caused him to leave Houston, imagine LA and Philly.