If you want a "cute" slice of life with some action thrown in, you could try Love, Chuunibyo, and Other Delusions. It's two seasons long and a movie, and has some mech-themed OVA with sick special effects.
If you want serious, hard sci-fi with a few attractive chicks in it and a fair bit of humor, try Steins;Gate. Arguably two seasons as well, though Zero is neither a prequel nor sequel to S1. Also has a movie, which I haven't seen.
If you want "cute" but also dark and effed up, with great music to boot, try Madoka Magica. One season and an epic movie (Rebellion). And a weird sequel that probably isn't worth your time.
If you want "cute" but also literal nightmares when you go to sleep at night, play Doki Doki Literature Club or watch a YouTube playthrough of it.
I've never watched it, but the Monogatari series is hyped in many online spaces. It sounds a little degenerate to me but also straight up your alley.
If you want serious dark and edgy without the cute factor or attractive women, try Psycho;Pass.
If you want a Shounen battler, try HunterxHunter or Demon Slayer.
If you want a good isekai-style power fantasy minus any chicks, try Solo Leveling.
If you want a personal recommendation, play the Danganronpa game trilogy. All you need is to have a Nintendo Switch and visit your local GameStop. There's a three games in one bundle. Skip S1 of the anime, but you might enjoy S2 after playing the first two games. Heads up: in case you haven't heard of it, Dangaronpa is extremely violent and revolves around murder mysteries.
Danganronpa is more of a visual novel than a proper game, so you don't have to work too hard to enjoy the experience. Just go on the internet and look up a walkthrough for the Class Trials, because otherwise it's a pain in the butt.
