I read a metric shitfuckton of manga/comics, I'm currently following like 20 different series as they come out and have read hundreds of series from start to finish. My favorite genres are action, martial arts, space opera, cyberpunk, fantasy, and seinen including ones that are harder to define like Kaiji or Akagi

Trouble is I'm having a hard time finding ones that I haven't read from those genres that are worth reading, but I know there must be more, so does anyone have any recommendations that maybe are older or more obscure or are perhaps ones that shouldn't be judged by their descriptions?

I've read so many that actually trying to type out a full list would be futile since I've probably forgotten about a huge number of them and the list would be stupid long.