AU where Minerva McGonagall has a little less faith in Albus Dumbledore so she does agree to leave Harry at the Dursleys.
But then proceeds to move right in next door with her wife because Albus never said that she couldn’t.
So Harry grows up with two grandmalike aunties next door, who basically finnagle him into living with them in all but name. It’s great, until he gets to Hogwarts because he keeps accidentally calling McGonagall Aunt Min instead of Professor.
The more I think about this the better it gets because suddenly a small biracial orphan appearing on the Dursley’s doorstep is less scandalous and gossip worthy in the
pasty ass white suburbia of Privet Drive, when it’s compared to the elderly lesbian interracial couple who moved in next door.