Though I do love Anime and Manga of all sorts, I’ve only been into this genre for about a year.
So far I’ve collected:

Cowboy Bebop series (Anime: 26 episodes)
Cowboy Bebop The Movie (Anime Film)
Rurouni Kenshin (Anime: there are 95 episodes!)
Bizenghast (Manga: Book 1)
Samurai Deeper (Manga Books: I have books 1-8)
Noir (Anime: 26 episodes)
Evangelion Manga (Manga: Books 1-8)
Appleseed (Anime Film)
Hellsing (Anime: 13 episodes)

I have a small collection now. I can guarantee it’ll get bigger. There is such a variety of styles and genres that I’ll be collecting for a long time.

Remember to look in as many places as possible either on the internet or in libraries or books to get as much information from as many sources as possible to help you develop your own style of drawing.