What are the best action, comedy, romance, and sci-fi animes, zombie, highschool

related? I love animes than contain some romance, i love action, zombie and most of all, the story and comedy in it. These are few of the animes i have seen and liked a lot: Zero no tsuikaima, bleach, ouran high school, death note, fairy tail, high school of the dead, kore wa zombie desu ka?, angel beats(my first anime), Full metal panic, I may have sen other ones similar, and i've heard of zombie loan, but i havent watched it yet. so, if you guys/girls know anything similar to this, i'd be really thankfull
I do read some manga, but im talking about anime that you watch, Ms. PinkBlossom
Plus, im sorry, but the only one in this i found interesting is Vampire Knight(Sort Of)