Oh yeah, I got into manga last year and its a whole new world. Its awesome, quick to read and has some really unique stories, you may not have asked for it but here are some recommendations lol
The Boxer: This is a manhwa (korean, colored and also mobile friendly), its about boxing but its so good and so beautiful to read. A must in my opinion.
Kingdom: This is my recommended 700+ chapters series to get into, skip One Piece and Hunter X Hunter, this manga is about the unification of China and while the art is a bit rough the story, war and tactics is absolutely insane, it only gets better.
Eyeshield 21: You don't care about american football? Me neither, but the art here is done by Murata, a master in this field, and the characters are lovable, a bit old and aged but great.
One Punch Man: You already know what this is about, and its awesome. Murata draws it too and its still going
Solo Leveling: Another Manhwa, this is all about fantasy and an OP main character versus a world of giant creatures and dungeons. Absolutely insane art and crazy story, pretty fun read, I flew through it.
Claymore: You heard of Attack on Titan and stuff, this came before it and its fairly similar but also totally different, the art is also insane but the fights can be a bit hard to follow sometimes. Still, great story, dark fantasy at its best
Sakamoto Days: Jhon Wick but he has a family and he got a bit fat after retiring, very funny but sick action
So anyways there you go, I hope you have a good time if you read any of them