anything on this list UBOS_JoshZ's Anime List - MyAnimeList.net
I know everyone else has probably suggested these but I don't care since I only read OP.
Attack on Titans (on going, 19 episodes starting tomorrow, great anime)
and
Full Metal Alchemist Brother Hood (64 episodes, really good plot)
Those are the only two short animes I've watched/ am watching.
anything on this list UBOS_JoshZ's Anime List - MyAnimeList.net
Fear the old blood.