I can give you one from every genre. lmao
Gateway Magical Girl: Sailormoon
Gateway Rom-com: Ranma1/2
Gateway Shounen: DBZ/Yu Yu Hakusho
Gateway Harem: Tenchi Muyo!
Gateway Mecha: Gundam Wing
Gateway Sci-Fi: Outlaw Star/Battle Angel
Gateway Horror: Devil Hunter Youko/Vampire Princess Miyuu
Gateway Fantasy: Record of Lodoss War/Magic Knights Rayearth
........I was a Toonami freak. What I couldn't get from TV, I rented from Hollywood Videos. Can you tell?
Gateway Hentai: Uratsukudoji ugh....