~ SHOWS ~
-The Rain (Netflix)
-Riverdale (Only season 1 and 2 is good. Thank you, next.)
-Legion (Hulu)
-My Babysitters a Vampire (Netflix movie and tv show)
-Stranger Things (Netflix)
-That 70's show (Netflix)
-The Fosters (Netflix)
-Shameless (Netflix)
-American Horror Story (Netflix)
-Chilling Adventures Of Sabrina (Netflix)
-Marvels Agents Of Shield (Netflix)
-Santa Clarita Diet (Netflix)
-The end of the F***** world (Netflix)
-The Vampire Diaries
-The Umbrella Academy (Netflix)
-Gotham (Netflix)
-Regular Show (Hulu)
-Most early 2000's Disney/Nickelodeon shows
-The Society (Netflix)
-Monster High
-Hwarang: The Poet Warrior Youth
-H20: Just add water
-Danny Phantom
-Adventure Time
-Misfits (UK)
-Chambers (Netflix)
-Abyss (Netflix)
-The Assassination of Gianni Versace (American Crime Story)

~ANIME~
-Blue Exorcist
-Kakegurui
-Tokyo Ghoul
-Rosario Vampire
-Corpse Party
-Avatar: The Last Airbender
-Black Butler
-The Devil Is A Part Timer
-Sword Art Online
-My Hero Academia (Hulu) (I don't associate with the fandom, i don't ship either, I just like the show)
-Seven Deadly Sins
-Ajin: Demi-human (Netflix)
-Deathnote

~MOVIES~
-Anything Marvel
-Anything X-men
-My Babysitters a Vampire (Netflix both movie and show)
-Cirque du Freak: The Vampire Assistant (Netflix)
-Meet the Robinsons (Netflix)
-Sky High
-Teen Beach Movie
-Bunks
-Indiana Jones (All movies)
-Incredibles (both movies)
-Rise of the Guardians
-Halloween Town (All movies)
-Harry Potter (All movies)
-Twilight (All movies)
-The Darkest Minds
-Grease (original only)
-Heathers (Original Only)
-Kingsman
-UnderWorld (All movies)
-Percy Jackson (movies but I know it's trash, books.)
-The maze runner (movies are bad but books are good from what I've heard)
-Lord of the Rings (All movies)
-The Hobbit (All movies)
-The Nightmare Before Christmas
-Coraline
-Back to the Future (All Movies)
-Big Hero Six
-Shazam!
-IT (Original, P1, P2)
-The road within
-Carrie (either one is ok)
-The shining
-Us
-The Outsiders
-Doctor Sleep (REALLY RECOMMENDED)
-Knives Out
-Pulp Fiction
-Indiana Jones (all of them)
-The Tribe of Palos Verdes (Netflix)
-Eli (Netflix)
-Resident Evil (Degeneration, Damnation, Vendetta)
-Spider-man: Into the Spiderverse
-Less Than Zero
-The Perks of Being a Wallflower
-The Lost Boys

~Internet~
-Creepypasta
-Youtubers (Dan and Phil, Shane Dawson, Daz Games, more to list)
-SCP containment breach
-super secret (Webtoon)
-BTS
-Unordinary (Webtoon)
-The last time I saw Richard (youtube)

~Video Games~
-Resident Evil (All)
-Fall Out (All)
-Skyrim
-Oblivion
-Mad father
-Witch's house
-Ib
-Mermaid Swamp
-the crooked man
-Misao
-Morrowwind
-Halo (All)
-Until Dawn
-Detroit: Become Human

~ Misc. ~
Dungeons and Dragons

There's definitely way more but I can't list from the top of my head atm.This is what I'm interested in not exactly a fandom I'm in.