Most Helpful Girl
Ah, I love Hellsing and Dragonball! If you like darker horror-action anime, then I recommend Parasyte: the maxim. It's kinda gory and the idea of it is super gross and quite scary and there are awesome fight scenes. I love the animation and the protagonist is really easy to relate to, in my opinion. It can get pretty deep so it's interesting and it's really emotional at some points. Has a love story but it's not the main plot line, the plot line is more about character growth and figuring out how to save the world 😋 I think it's about 24 episodes, something like that, and I wasn't bored during any of them, so give it a go!
I'm about to go into an exam so I can't give more of a detailed answer but if you need other options when I come out, I can try to think of some 😋
Most Helpful Guy
I hardly know fuck about anime, but two that I always liked (never really enjoyed others much, for the most part) are Outlaw Star or Ghost in the Shell. No idea how mainstream they are, but if you haven't seen em, give those a shot.