OP means overpowered. But it's fine as long as the protagonist is not a good for nothing.
And the manga's I have already read is the popular ones. Like- One-punch Man, Akatsuki no Yona, Shokugeki no Soma, Gintama..etc. But I know there are so many underrated mangas in the past and even now. That's why I was asking if anyone read any good manga besides the very famous ones.
Is this One-punch Man?
Here are some manga i know:
Hagure Yuusha no Estetic (Manga)(Anime)(Light novel)
Kenja no Mago (Manga)(Light novel)
Tensei Shitara Slime Datta Ken (Manga)(Light novel)
Tsuyokute New Saga (Manga)(LN)
Seiken Tsukai no Kinju Eishou (Manga)(Anime)(LN)
Saijaku Muhai no Shinsou Kiryuu (Manga)(Anime)(LN)