Dragmire the Savior
Still haven’t finished BotW so I still don’t know jack about Ganon’s cannon (heh) state in that game, but I came up with the idea for an AU of Ganondorf reappearing as a human when Link doesn’t wake up and the Divine Beasts start wrecking the world. Rather than destroying the world, he presents himself as a savior, with Hyrule Castle as the one safe haven in Hyrule. With the Beasts and the Guardians he funnels the world’s survivors to him who begin praising him as a god. Any who speak against him tend to disappear without a trace except the occasional banana peel.
Only a few pockets of life exist outside of Hyrule Castle’s walls now, and the only significant resistance to his domination is in a Zora prince, a young Gerudo Queen, a Rito warrior, and a descendant of the Goron champion.