My very first Hooptober, I've been waiting all year to try this out, first time proper viewings for each film and I've picked some heavy hitters I've been saving for a long time!
Original list by Cinemonster HERE

*Moved around to be ranked from best to worst*

6 countries:
Went with six countries I've never seen horror movies from:
xIndia - Tumbbad (2018)
xVenezuela - The House at the End of Time (2013)
xEgypt - Fangs (1981)
xSpain - Errementari (2017)
xAustralia - The Tunnel (2011)
xFrance - Amer (2009)

8 decades:
Went with the biggest film I hadn't seen in each decade pretty much, go big or go home!
x50s - Diabolique (1955)
x60s - The Birds (1963)
x70s - The Omen (1976)
x80s - Friday The 13th Part 4 (1984)
x90s - Interview With The Vampire (1994)
x00s - American Psycho (2000)
x10s - Hell Fest (2018)
x20s - Halloween Kills (2021)

2 folk horror:
xSleepy Hollow (1999)
xThe Blood on Satan's Claw (1971)

4 films from 1981:
xAmerican Werewolf In London (1981)
xScanners (1981)
xHalloween 2 (1981)
xThe Beyond (1981)

2 films from your birth year:
xThe Hunger (1983)
xAngst (1983)

2 haunted house films:
xGhostwatch (1992)
xParanormal Activity 3 (2011)

The worst Part 2:
xExorcist 2: The Heretic (1977)

1 film set in the woods:
xThe Burning (1981)

1 Kaiju or Kong film:
xMonsters (2010)

2 Hammer films:
xThe Devil Rides Out (1968)
xThe Vampire Lovers (1970)

3 films with a person of color as director or lead:
xDef By Temptation (1990)
xIn Fabric (2018)
xCandyman (2021)

3 Asian horror films:
xKwaidan (1964)
xDark Water (2002)
xRingu (1998)

1 Tobe Hooper film:
xThe Funhouse (1981)

FOR THOSE THAT LIKE TO DO EXTRA WORK: WATCH JD'd Revenge, The Skull and The Scooby Doo Project