If TASM 3 were to hypothetically happen, for the sake of the argument, I want him to defeat the Sinister Six: Harry Osborn/Green Goblin, Aleksei Sytsevich/Rhino, Otto Octavius/Doctor Octopus, Adrian Toomes/Vulture, Quentin Beck/Mysterio, and Kraven the Hunter. I don't want a symbiote storyline because that was not what TASM 2 was setting up and it would ruin Peter #3's closure in No Way Home. Instead, he would find a way to cure Harry of his disease and Goblin persona, but Harry would still feel arrogant, refusing to admit he was wrong for calling Peter a traitor and k!ll!n9 Gwen. It may be possible for TASM 3 to be a multiverse film where we meet Spider-Woman, but I prefer it to be grounded and have Peter defeat (the Sinister Six dies, with Green Goblin dying from an explosion), but the cost would be his life (similar to Ultimate Spider-Man).