 If you liked
Apocalypse no Toride
|
 ...then you might like
Gakkougurashi!
|
For Fort of Apocalypse, it's zombie with madness, coming from reform school aka jail packing with zombie full of boys.
For Gakkougurashi! it's real school packing with zombie, but had more slice of life and some heartwarming event full of girls.
Both had their own type of Story, though basically it is boys/girls meet zombie.