Persona vs JoJo's Bizzare Adventure
Connection:
Both are the main protagonist in the fifth story of the series (Persona 5 and JoJo's Bizarre Adventure Golden Wind respectively)
Both are the leader of a group (The Phantom Thieves of Hearts for Joker and Team Bucciarati for Giorno)
Both use can summon supernatural creatures (Arsene for Joker and Gold Experience for Giorno) that are manifestations of their very soul that have evolved after contacting an outside force
Both were outcasts due to different reasons (Joker being framed for a crime he didn't do and Giorno being abused)