One Punch Man
This is the obvious community rec because both come from ONE and mix absurd comedy with surprisingly sincere character writing. One Punch Man is more superhero parody, while Mob Psycho 100 focuses more on emotional growth, but the deadpan humor and explosive action overlap heavily.
The Disastrous Life of Saiki K.
Both series follow an overpowered psychic who would honestly prefer a normal life. Saiki K. is much more gag-comedy focused, but fans who liked Mob's awkward social energy and psychic absurdity often enjoy its fast, dry humor.
Gintama
Gintama shares Mob's ability to jump from ridiculous comedy to surprisingly heartfelt drama without making the emotional beats feel fake. It is bigger and more chaotic, but the tonal whiplash between jokes and sincerity is a major shared appeal.
My Hero Academia
Both use superpowered youth as a way to talk about identity, self-worth, mentorship, and what it means to become stronger. My Hero Academia is more traditional superhero shounen, but fans who liked Mob's growth and flashy battles often see the connection.
Tengen Toppa Gurren Lagann
The overlap is the huge emotional escalation: awkward young characters becoming more confident while the animation gets bigger, louder, and more expressive. Gurren Lagann is more mecha hype than psychic comedy, but both are very good at turning self-belief into visual spectacle.