YouTube has some awesome fan channels and you can enjoy horror movies and documentaries for free. Let's go through some I subscribe to -
1970s Made-For-TV Horror: TVTerrorland
My favorite site for 1970s nostalgia horror for free. Children of the 70s totally get this channel. Made-For-TV awesome horror movies like "Out of Contention" "The World Beyond" "The Haunting of Seacliff Inn" "The Strange and Deadly Occurrence."
Paranormal Documentaries: OnlyTheParanormal
1980s Slasher Films: 80sSlasherFan
Creepy Ass Halloween Haunts: PumpkinRot
Some other enjoyable creepy atmospheric musical videos you must see - staples in my haunted world -
Haunting creepy music video
Creepy Doll Island Music Video