None.

Except Kara no Kyoukai, of course, but like, that's already done since they're in the same universe and if you wantedd something more specific their characters already often do cameos or even more like in Lord El-Melloi Cases/Adventures .

Ok

Jojo could fit in the best.

With the pillar men being true ancestors and stands a unique magic originating, in order to fight Sefear if the sword of promised victory failed.

JJBA. Keep the art style of Araki too.