Saiki Kusuo no Ψ-nan, Mob Psycho 100 II Recommendations
Just watch it and trust me. It's kinda similar. It's both really funny and random humor. Both characters are really strong. Difference is that saiki really is about the comedy but at mob pyscho it's also about crazy fighting scenes. So if you liked the overpowered part and comedy part definitely watch saiki. If you only liked the fighting part than saiki is not for you.
Both have a pretty similar basic concept but Mob Psycho is more focused on the Mc trying to improve himself and getting along without his psychic powers while Saiki Kusuo is more of a comedy series.