7 films from franchises(mix-and-match, or the same. 7 total)
The Conjuring 2
Paranormal Activity: The Ghost Dimension
Halloween 2
Candyman
Hellraiser 2
Basket Case
Children of the Corn

6 countries
Hellraiser 2 (UK)
The loved ones (Australia)
Them (France)
Braindead (new Zealand)
The Neon Demon (Denmark)
The Uninvited guest (Spain)

5 decades
The Visit (2015)
Baghead (2008)
Day of the Dead (1985)
Braindead (1992)
Suspiria (1977)

5 films from before 1970
House On Haunted Hill (1959)
Shadow of a Doubt (1943)
The Last Man on Earth (1964)
Creature from the Black Lagoon (1954)
Nosferatu (1922)

5 films from the following: Bava, Argento, Lenzi, Fulci, Henenlotter, Romero, Stuart Gordon (mix-and-match, or all one)
Castle Freak
Re-animator
Tenebre
Basket Case
Phenomena

3 crazy animal movies
The Shallows
Tusk
Sharknado 4

1 silent
Nosferatu

1 original film and its remake(Evil Dead, Frankenstein, Halloween etc..)
Knock Knock
Death Game

1 Classic Universal horror
Creature from the Black Lagoon

1 Stephen King adaptation (in tribute to Stranger Things)
Children of the Corn

1 Film with a witch/witchcraft (in tribute to The Witch. Can't be The Witch :))
Suspiria

Aaaaaaaaaaand 1 Tobe Hooper Film(There must ALWAYS be a Hooper film)
Poltergeist