Geez... I have almost a thousand different series that I follow at Batoto and elsewhere. Although a great number of them are series that are stalled or oneshots or have been axed, etc.
Hmm... Complete series that I have finished...
Cage of Eden, Cradle of Monsters, Kodoku Experiment, Aiki, Akumetsu, Death Note, Jormungand, EX - Shounen Hyouryuu, Franken Fran, Region, And many others.
My more favorite ongoing series:
Comedy: One Punch Man, Prison School, Monster Musume, Rising X Rydeen.
Action, Adventure, Scifi, Fantasy: Black Lagoon, Overlord, Destroy and Revolution, Terra Formars, Verdant Lord, Alice in Borderland, Gate: Thus the JSDF Fought There, BDGIM, Deathtopia, Re: Monster, Sprite.
Mystery: Ouroboros, Montage.
Lots of others that I can't recall right now.
Thank you for your attention. We now return you to your regularly scheduled manga, already in progress.