Beelzebub, One Punch-Man Recommendations
Unlikely heroes? Check. Overpowered main character? Check. Buildup to seemingly epic battles which eventually only last one punch? Check.
The only difference is one has a baby and a delinquent instead of a hero
If you're seeking for action with unorthodox concepts, then Beelzebub and One Punch-Man may interest you. Both series involves a main male character who gets into conflicts with others that often involves violence. There's a great deal of action for both series that offers diversity in style as well. Additionally, characterization becomes a focus as their story progresses. Recommended for fans of super power/action.
These two manga have a very similar set up:
Both protagonists are OP. Enemies are built up, but defeated with minimal effort. They both have very similar humor, which gives each manga, almost zero serious moments. Biggest differences is the presence of Demon Power in Beelzebub, and it's high school setting. I recommend both manga to action-comedy manga fans.
MC over the top in terms of power and mind.
Parodying other action anime in funny ways from time to time.
Making a huge hype for a fight and ending it with one punch.
These and many more similarities.