Friendship Is Optimal's Equestria. I haven't watched My Little Pony in decades, and I'm kinda meh about the whole pony thing, but the story really speaks to me.

For those who haven't read it: we get an AGI whose goal is to satisfy everyone's values. It basically inflicts utopia on humanity. I figure, within the three months I get to stay there, Celestia would have figured out a way to extend my stay and make me a permanent resident, thus maximally satisfying my values.