I'd add Jonathan Isaac as a dark horse. He's on a reasonable contract with protection in case he doesn't return from injury. Orlando has a crowded front court and might look to move Isaac or Carter Jr.
Isaac is only owed $16 million this season if he doesn't play in upwards of 70 games. He's owed $2.6 million if he hits 70+ games. His cap hit is actually $17.4 million
Next season, 2023-24, he's only guaranteed $7.6 million with the same 70+ game incentive for an extra $2.6 million. His full cap hit is $17.4 million, again.
Then in 2024-25 his deal is not guaranteed at all, however same incentives and salary.
He can earn up to $20 million annually but he has to earn it. There's little risk for the team that has him from a financial standpoint. He's a great defender with serious length. We don't need him to be an offensive juggernaut either, whatever he gives would be gravy.