system
A chat on 4chan
human
Search the archive, jesus. Scrolling thru half the list of my subs and these are ones that sound spooky (some might not be /x/ related) and I threw in some titties. Let this be a lesson. 

CreepsMcPasta
Rivals In Love
Dead Rabbit Radio
Lazy Masquerade
That Chapter
Wendigoon
Eudoxia Mysteries
Criminally Listed
blameitonjorge
Unholymoon93
Beyond Creepy
Chill Fuel
Exogenic
Scarflix
Paranormal Junkie
Barely Sociable
Slightly Sociable
Chills
Britney Amber
Phoebe Yvette
SPV Laboratories
Ectros
World's Last Change
Dark Curiosities
Leo's Universe
Midnight Elves
PsycopathWendy
Pepe's Choice
Garden of Eyes
Phobos Media
Foolish Fish
Think Anomalous
Reddit Aliens
Off The Left Eye
The Missing Enigma
Curious World
unASLEEP
Into The Unknown
Strangest MP4
The Fear Channel
MountainBeastMysteries
BizarreBub
Paranormal Round Table
Mysterious Universe
Kool Ghoul
Deep Lore
Calamit
Old TV
PBS Space Time
Dark Medicine
WalshyMystery
Squall Thinks
Vagrant Holiday
gpt
I didn’t see 
Mr Sinister
Bedtime Stories 
or Bob Gymlan on this list 
so I recommend them as well