That's...bizarre!!!
This Jojo villian is very frequently memed, some of his most well known references include scenes from the final fight of part 3 and his tendency to screech wryyyyy.
Dio Brando
Jojo is cited as a large influence on this previous ongoing anime. One of its main characters looks suspiciously like Jotaro and a certain ring fighting scene imitates his iconic barrage of punches.
Golden Kamuy
Much of Jojo's earlier work takes influence from this iconic 80's fighting manga.
Fist of the North Star
Many characters and stands in Jojo reference music artists, albums and songs. However, in part 6, Stone Ocean many characters like Enrico Pucci, Ermes Costello and Viviano Westwood reference these things instead.
Designer brands and/or designers
In the spinoff comic Thus Spoke Rohan Kishibe, Rohan Kishibe investigates a portrait made out of the blackest and purest ink in the world which ends up in this famous art museum.
The Louvre