Im looking for old and obscure anime suggestions, maybe something as Wicked city or anything cyber culture related.
Psycho-Pass is a pretty good cyberpunk anime, I recommend watching with subs because the dub is a bit american and annoying IMO.
Texhnolyze is cool, I watched it quite a few years ago but I loved it at the time.
I assume you've seen GitS films, they are amazing, the series was OK but nothing on the films. Also Akira, obviously.
I also am looking for some more anime suggestions, I liked Attack on Titan and Death Note but I find most of these "shonen" style animes a bit childish, I like my animes dark and brutal.
Urotsukidoji is a lot of fun, if you're down with the tentacle rape lol. It's pretty cheesy but quite hilarious IMO.
and if you want to read the synopsis you can come to MAL