Thank God for Cinemonster. His list: letterboxd.com/cinemonster/list/hooptober-cinco-your-terror-is-a-locked-room/

QUICK EASY RULES:
10 'Anniversary Films' (Release years end in an 8, excluding 2018)

Dracula (1958)
The Living Skeleton (1968)
Dawn of the Dead (1978)
The Fury (1978)
The Blob (1988)
Brain Damage (1988)
Killer Klowns from Outer Space (1988)
Maniac Cop (1988)
Scarecrows (1988)
The Midnight Meat Train (2008)

6 countries

Canada (Terror Train)
Germany (Nosferatu)
Japan (The Living Skeleton)
Italy (5 Dolls for an August Moon, etc.) 
UK (Dracula, etc.)
USA (The Blob, etc.)

6 decades

20s (Nosferatu)
30s (Dr. Jekyll and Mr. Hyde)
50s (Dracula, Night of the Demon) 
60s (House of Usher, The Living Skeleton)
70s (5 Dolls for an August Moon, etc.)
80s (The Blob, etc.)

6 films from before 1970

Nosferatu 
Dr. Jekyll and Mr. Hyde
Night of the Demon
Dracula
House of Usher 
The Living Skeleton 

6 films from the following: Romero, Cronenberg, Clive Barker, Terrence Fischer, Sergio Martino, Bill Lustig (mix-and-match, or all one)

Dawn of the Dead (Romero)
Dracula (Fisher)
Maniac Cop (Lustig)
The Midnight Meat Train (Barker)
Torso (Martino)
Your Vice is a Locked Room and Only I Have the Key (Martino)

2 flying things that kill you films

Phantasm 
Piranha Part Two: The Spawning

1 silent film as a tribute to A Quiet Place

Nosferatu  

1 aquatic menace film as a tribute to Meg

Piranha Part Two: The Spawning 

2 women directed films

Blood Diner
Ghostwatch 
 

1 inanimate object comes alive film

Christine 

1 film with Barbara Crampton in it.

Chopping Mall

And 2 Tobe Hooper Films (There must ALWAYS be a Hooper film)

Lifeforce
Mortuary