Most of the JJK Male Reader stories don't really catch my eye (no offence, I love some) so I'll make one that hopefully catches yours? Abilities are based off of Sun Wukong's from Journey To The West Season 1 : Done Season 2: Done Season 3 (Manga): Currently being written

Son Y/n is just an Earthling boy adopted by Son Goku after his parents were murdered, but his potential is far greater than the average human.