lately i've gotten back into watching anime and am looking for some some new ones to watch. some realy good ones i've watched recently are sword art online 1 and 2, tokyo ghoul and puella magi madoka magica
Fairly new to the anime thing. But I've found a couple that I really enjoyed while being bored scrolling on netflix.
Tokyo ghoul as you mentioned was amazing. For something along those lines look for Attack on Titan. Also Deadman Wonderland. These are probably the two best I've seen besides Tokyo Ghoul. I had a lot of fun watching them. Very adult.
I really enjoy One Piece too. Sub par animation(ish) but they've avoided the habit that a few others I've seen make of just sitting there debating between characters for the entire episode.