animes where mc is crazy rich?

you mean crazy poor?

noragami
quintessential quintuplets

Watch Mr. Beast videos

Kakegurui
Kaguyasama Love is War
Black Butler

Cleopatra DC

The main character of Cleopatra D.C. is Cleopatra Corns, the owner of Cleopatra Corns Group, a conglomerate that is so wealthy and powerful that they control almost the entire U.S. economy.

So yeah, very rich.

Off the top of my head, Jonathan Joestar. Tho the other Jojos also have Speedwagon Foundation helping them.
JoJos Bizarre Adventure TV