I'm tempted to say Harry Potter, but now that Rowling has committed the unforgivable crime of telling fat, mentally ill men in teen stockings that they were, in fact, repulsive autogynephiles, the majority of fat cows have moved on to more politically correct pastures. These days I'm pretty sure the HP fandom has dwindled to just the normies who never gave a shit about trannies in the first place and the usual Twitter retards who screech every time Rowling posts something.
I'd say MLP. It only appeals to retards, little girls, and retards who think they're little girls.