I enjoy anime with Male MC's that just don't care. Something similar would be SNAFU.
Definetly Solo Leveling. I see you have it planned, but why not just give it a try right now? Its really worth it.
You could also try reading Berserk which is my favorite manga, its insane how popular it is yet i dont see people reading it that much.
Yeah, I've been trying to finish some anime before I read Solo Leveling but it looks so good, I'm not really interested in Berserk not much about it appeals to me.
Thats understandable when it comes to Solo Leveling, i also got some stuff to watch before i can fully read. But why not give Berserk a try? What makes you stay away from the series? It really is a well-done series, and i honestly dont regret reading it sooner. There is just so much to unpack from the series!