Trait Hoarder
Great story but read the chapters somewhere else, they're all out of order.
I Can Raise Skeletons
I was unsure about this one but I do like it and there's room to grow now. At first it looked like it might be too shouneny with the ghost master beating him to make him stronger, the new arc addresses that. We get to see the past of his skeleton soldiers, I really hope they don't go back to being mindless monsters after such an awakening. MC is pretty cute, and he's morally grey. He does want to save the innocent but he's happy to kill people who threatened him first. I wish the skeletons weren't CGI since the art is good, though I can see why drawing them by hand might not be feasible. He isn't really strong now, he might be later though.
Meccha Shoukan Sareta Ken (Tsugutoku) - Webtoon
Less edgy than it's manga counterpart. I would say I like this version a little more but it's up to preference really, they both have good and bad. They restructure the story to make more sense here while cutting out some detail so there's reason to read both. How faithful it stays in future chapters will have a huge impact, there should be a significant turn soon. Not really sure if MC could be qualified as OP because he's borderline useless during the day, at least if the webtoon follows manga powerscaling.
The Last Adventurer