These are all old, but worth it imo:
91 Days
Rahxephon
Noein
Last Exile
Crest of the stars
Banner of the stars
Betterman
Gungrave
Tokko
Boogiepop and others
Boogiepop phantom
Gundam The 8th MS team
G Gundam
Serial experiments Lain
My roommate is a cat
Natsume’s book of friends 1 reply
