monster is a psychological thriller
Monster as others have said. It's much better than death note as well.
death note has to be the most unrealistic story ever lol
but anyway, you could try Akira
its a movie though but its a dark dystopian future that you might like ( also a lot of psychological fuckery and insane animation )
I know you said you want realistic ones but you have to watch mob psycho 100 man, beautiful animation, story, characters, script, it has it all. no weird slice of life anime bullshit either. 10/10 anime.
Death parade, thank me l8r.
Monster is a very nice realistic thriller
I would recommend Vinland Saga as a great adventure anime with emphasis on story and character development rather than monsters and superpowers based in viking era. No BS in there either
A realistic Samurai drama , Shigurui is great also
Then you got Cowboy Bepop and Black Lagoon, Similar action based anime no superpowers in any of them but nothing too exciting story wise either. If you are into gun fights though check em.
I know only Ghost in the Shell, Animatrix and Pokemon
Initial D, pretty damn realist/no virgin baiting.
Neon Genesis Evangelion
All of these are quite old but very mature/dark.
Classroom of the Elite is quite like Death Note.
Detective Conan, realistic thriller except a few things here and there, plus almost a 1000 episodes to catch up on
Kaguya-sama: love is war (highschool romcom, with 2 students tricking each other, similar to death note, but sweet)
Terror in Resonance (psychological thriller, realistic, and great story)
Psycho-pass (great realistic future anime set in the 22nd century)
Code Geass is similar to death note in the way that the protagonist gets a supernatural power and uses every methods to further his goals and is one of the all time great animes aswell
Street racers and a coming of age series.
There is also an actual movie, but I suggest avoiding that.
Kaguya-Sama : Love is War
Your lie in April
Hige wo soru (new ep every mondays)
league of legends cinematics
Your lie in April
Koi to yobu ni wa kimochi warui
Hige wo soru
Only "realistic" ones I know
Phantom: Requiem for the Phantom
Bungou Stray Dogs
desert punk is underrated af
Try Code Geass, it's better overall than Death Note. But L's ark is unmatched.
Why watch anime when you can watch Red Vs Blue ( Bestest Show )
Munou na Nana
Yuukoku no Moriarty
attack on titan
Just watch these
Tokyo Ghoul and Jujutsu no Kaisen, they are more seinen than shonen nekketsu style and they evolve in a dark fantasy world.
You can also watch Castlevania (US animated series). If you like mythology, you can watch Blood of Zeus, this one is a short animated series (6 episodes of 20/25 min each).
Also City Hunter cause it's funny =D