Anime
The drawn, animated style of Japan (but not necessarily just Japanese anime). I don't watch anywhere near as much of this as I'd like, to be honest...
Assassination Classroom
Attack on Titan
Black Butler
Whilst I certainly have some bias from nostalgia, given that it was the first I ever watched (in High School one very ill-advised night, when I binged the entirety of the first season...), Black Butler remains one of my all-time favourite anime series.
Black Clover
Blue Exorcist
Blue Eye Samurai
Code Geass
Cyberpunk: Edgerunners
A very fitting story for Cyberpunk, Edgerunners follows David as he falls into a group of mercenaries and forms relationships with them, but ultimately ending in a tragedy of lies, secrets, and betrayal. *'I Really Want To Stay At Your House' starts playing...*
Death Note
Elfen Lied
A very mature anime with a content-warning list longer than my arm, Elfen Lied tells a story I found rather interesting, with some emotional history behind the characters revealed over time. I really enjoyed this, honestly, even if it does a similar focussing-on-a-melody trope as Black Butler Season 1's 'London Bridge is Falling Down'.
Free!
Frieren: At Journey's End
Full Metal Alchemist: Brotherhood
Kekkai Sensen
NieR: Automata ver. 1.1a
Noragami
Ouran High School Host Club
Scissor Seven
Sword Art Online
The actual 'Sword Art Online' part was really cool, and it makes sense that this basically created a genre for an entire generation. The Gun-Gale Online and Alfheim Online stuff, though, were a bit... weird. I stopped watching after that.