 If you liked
Mob Psycho 100
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 ...then you might like
Tensei shitara Dainana Ouji Datta node, Kimama ni Majutsu wo Kiwamemasu
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Both of these shows have well-animated psychic/magic action scenes that express a similar style and vibe, especially in later episodes. Both main characters are OP and have a strong dichotomy between who they are in and out of battle. Both shows have a small, floating, supernatural, and somewhat irritating sidekick.
The main difference is that 7th Prince uses mild ecchi as relief while Mob Psycho uses gag comedy.