In my eyes, the Heat only need a superstar to run their offence to become legit contenders. They could probably go after LeBron or Giannis but the spacing isn’t very nice. Since those are the only potentially available at the current moment, they can’t really make a big move. They do have assets for a big trade (picks, salaries, young talent) although they may not be willing to give up their young ones for example LeBron. Devin Booker for Tyler Herro and picks could be something to consider.