>>114933296Technically no one, saiyan biology is great for going past opponents power levels once they find a cap. Though seeing as Gohan is a pacifist he'd probably fall into other roles instead of just murderous bloodlust.
In DC:
He'd get bored and attend middle school. He'd become best friends with Damian, Jon and Billy and proabably date some teen heroine for a time. His Great Saiyaman would be a member of the Justice League and there he'd train under Wonder Woman.
In Marvel:
Gohan would become one of the heads of shield and lead the Advengers in a few years time, he'd train with Thor and become his equal/better in about two years. He'd also unlock SSR by gaining power cosmic or by training in Asgard.