Sixers: Barnes can do the exact same things as Harris. He is literally the same player, the only difference is that his contract is way better. Holiday can give them a solid bench 3&D player, and Len would be a solid backup to Embiid. This trade vastly improves their depth and also gets them under the tax.
Starters: Harden, Maxey, Thybulle, Barnes, Embiid
Bench: Milton, Holiday, Korkmaz, Niang, Len
Kings: They get Springer and two 2nd Round Picks for taking on Harris’ contract. Harris is a solid player, who can be a good 3rd option behind Fox and Sabonis. This is a good trade that allows them to pursue a play-in spot next year.
Starters: Fox, Mitchell, (lottery pick), Harris, Sabonis
Bench: Davis, Springer, Harkless, Metu/Lyles, Holmes