What kind of anime are you into? Action, drama, romance, etc?
I recently watched Peacemaker Kurogane and I really liked it, it's fairly short as far as animes go, so it doesn't take long to watch.
I would also recommend Inuyasha if you haven't seen it.
Golden Time, My Dress Up Darling, or Your Name if you like romance.
High School of the Dead is a really good anime imo.
Kenshin, Full Metal Alchemist, Hunter x Hunter, Death Note, Code Geass, Trigun, My Little Monster, Clannad, Durarara and Toaru Majutsu no Index are others I recommend :3