Star Wars, Harry Potter, Disney, Pokemon, Yuri on Ice~ Ummm, sort of Attack on Titan, but I'm very come and go on that. Batman (DC overall, sort of) Doctor Who, but not so much anymore.
And that's pretty much it, I think. .-.
So so so much, harry potter, animal crossing pokemon, overwatch, ancient magus bride, and more and more and more. I don't actively participate in non-cannon things but I have my personal ships and stuff. :) Just loves to follow what makes my heart happy!
"I'm fun scary!" [tot=Geishacookie]
i'm completely at nintendo's will, and i will shell out in an instant for any of their properties, but especially pokemon. i'm also getting more and more into monster hunter, which i only started into about a year ago with generations, and now mh world is coming out, i'm super excited. i am also beholden to guild wars 2, which is free to play now by the way, and i recommend it! friendliest community in an mmo i've ever been a part of.
I love Osomatsu-San! along with boku no hero academia and mob psycho 100!
Sailor Moon Pokemon Harry Potter Animal Crossing League of Legends The Mcelroy Brothers Osomatsu-San Homestuck Hiveswap Game of Thrones Stranger Things Bob's Burgers Riverdale Theres probably a few more i'm forgetting.
If you count being part of a fandom as really seriously participating in it, then I'm not a fan of a lot of things, but I won't define it that way. Some things I'm in to are:
Animation: Disney RWBY (Hurry up and fight already season 5, drama is not your strong suit) BoJack Horseman Steven Universe Fullmetal Alchemist (I like them both, but Brotherhood is definitely better) Attack on Titan Other anime in general that aren't so fandom-spawning
Video Games: Dishonored Bishock Skyrim Undertale Don't Starve Amnesia: The Dark Descent Fire Emblem Shadowrun Valkyria Chronicles The Banner Saga Age of Mythology (for nostalgia)
Music: Symphonic metal, particularly Nightwish and Leaves' Eyes Classical Music Early music and instruments Electroswing (check out Caravan Palace in particular) RAMMSTEIN! In This Moment Eivor Palsdottir Tyr Wardruna (actually, I just love music in general, so I'll end the list here)
Other: Languages/linguistics Cool rocks and gemstones (but I'm not a geologist, so I don't know their names most of the time) Ethnic cooking (though there's only one ethnicity whose food I can make well and that is my own) Martial Arts and weapons
I used to be a fan of Pokemon and My Little Pony: Friendship is Magic, but got tired of both of them.

Fire Emblem Final Fantasy Legend of Zelda Radiant Historia Tales of RWBY Mondaiji-tachi ga Isekai Kara Kuru Sō Desu yo?
I don't really participate in fandom spaces but I consider myself part of some. I'm currently really into Dragon Age, besides that there's Animal Crossing, Harvest Moon, The Sims and Steven Universe.
[flower=Taheta]
I looooooove Harry Potter Star Wars The Lord of the Rings Stephen King (author) The Sims Reading in general Dexter (showtime) True Blood (HBO) South Park Disney All of the Teen Mom shows hahahaha Keeping up with the Kardashians The Inkheart world (Cornelia Funke) Natsumes Book of Friends Pokemon Anime!!! so many more lol
I got so many fandoms so I'm just gonna mention some, but I'm a big fan of shows like Supernatural, Merlin, Doctor Who (I'm not very far yet) and Sherlock. Books like Harry Potter, The inheiritance, Lord of the rings and the shamer. Bands like Black Veil Brides, Pierce the Veil, Sleeping with Sirens, Falling in Reverse, All Time Low, Fall Out Boy, Panic! at the Disco, My Chemical Romance and Twenty One Pilots. Games like Pokémon and Assassin's Creed. And anime like Assassination Classroom, Hunter x Hunter, Haikyuu!, Hetalia, Yuri!!! on Ice and Dangan Ronpa. And so many more.
I never thought that I was in a lot of fandoms, but perhaps listing them will prove me otherwise?
Games: Fire Emblem (7, 9, 10 only) Tales of (Symphonia, Abyss, Graces, Xillia 1+2, Zestiria, Berseria) Earthbound The Last of Us Golden Sun Pokemon Phoenix Wright 999 (still need to play VLR and ZTD -__-) Five Nights at Freddy's
Animation: Gravity Falls Over the Garden Wall Steven Universe Voltron Avatar: The Last Airbender Legend of Korra
Anime/Manga: Attack on Titan Psycho Pass Yuri!!! on Ice

Attack on Titan (which I've recently gotten back into lol), Pokemon, and the Marvel Cinematic Universe are my main inescapable fandoms. Other than that...
vidya: The Last of Us Ace Attorney but pretty much only the second game lol Fire Emblem 7 and Awakening Earthbound/Mother series Zero Escape trilogy Elder Scrolls Fallout Tales of Symphonia, Tales of the Abyss Sonic Adventure 2 Resident Evil
cartoons: Gravity Falls Over the Garden Wall Avatar: The Last Airbender Danny Phantom
animu: Psycho-Pass Tiger & Bunny Terror in Resonance Devilman Crybaby Tokyo Ghoul Yu-Gi-Oh! Digimon
tv Game of Thrones Dexter The X-Files

ALRIGHT my fandoms. I absolutuely LOVE animal crossing, i can't wait for the next console game. I also like pokemon and the yo-kai watch games. I really like steven universe... and that's all I can think off the top of my head.
I am into so much so I apologize in advance, anyways:
TV shows/movies: Harry Potter Hetalia Fullmetal Alchemist Zatch/Gash Bell Rick and Morty Steven Universe How to keep a Mummy The Amazing World of Gumball Disney
Video Games: Homestuck Pokemon Zelda Nintendo in general Animal Crossing Neopets Goatlings Elder Scrolls Undertale Fallout Kingdom Hearts Indie stuff
Other Fandoms: Furry (SFW ?) Homestuck Shopkins Reselling
Video Games Silent Hill (especially Silent Hill 2) Pokemon Legend of Zelda
TV Shows: Twilight Zone Twin Peaks Star Trek: The Original Series
Movies: Titanic (but I'm only interested in one character, really, and an obscure one at that) Star Wars Alien Indiana Jones James Bond Sherlock Holmes (Basil Rathbone movies)
Books: Biggles Harry Potter Sherlock Holmes Stephen King H. P. Lovecraft Edgar Allen Poe
Anime/Manga: One Punch Man Dragon Ball Berserk Monster
Other: SCP Foundation
[img align=center]https://i.imgur.com/3sICEUT.gif[/img] [tot=Neverwhere] [egg=Neverwhere] [tp=Neverwhere]
Well, it's good to see that I'm not the only one who has an insane list of fandoms. So, let's see...
Video Games
Doom Mortal Kombat Mario GTA Pokemon Injustice
TV Shows
Sons of Anarchy Dr. Who Black Mirror The Office Twilight Zone Addams Family The Munsters House Dexter Pretty Little Liars Hemlock Grove Orange Is the New Black Rick and Morty Bob's Burgers Numb3rs X-Files Criminal Minds Supernatural American Horror Story
Movies
Lost Boys Interview With a Vampire Nightmare Before Christmas Sin City The Exorcist House of 1000 Corpses Devil's Rejects The Big Lebowski Halloween III: Season of the Witch Hellraiser (but only like the first two movies) American Mary Children of the Corn The Dark Knight
Books
Interview With a Vampire Dreams of Decadance Love in Vein 1 and 2 Abarat Jonathan Strange and Mr Norrell Tithe The Dresden Files Heart Shaped Box Cry to Heaven The Vampire Armand Wicked Harry Potter E. A. Poe The Year's Best Fantasy and Horror Fragile Things Dark Love
Anime/Manga
Sailor Moon 12 Kindgoms Lost in London Kitchen Princess Kare Kano Peach Girl X Day Day of Revolution
Nice to find another SCP Foundation fan. Any particular favorites? Also noticed you're an H.P. Lovecraft and Poe fan as well.
SCP-1936 is pretty underrated. Very Lovecraftian. SCP-3199 is also underrated. My personal favorite is SCP-261 though, purely for the creativity.
[img align=center]https://i.imgur.com/3sICEUT.gif[/img] [tot=Neverwhere] [egg=Neverwhere] [tp=Neverwhere]
ORIGINAL POST
I've got quite a bit of fandoms I'm in. I'll list the ones that I pay the most attention, and ones that I've grown a big interest in over the past couple of days. Most of my fandoms are ones I look at for a bit and proceed on, so the ones I actually pay attention to are quite minimal comparatively.
EDIT as of 2025-05-15: I have not changed many of the things I am into... still into anime, KPop, TV, etc! :) I wouldn't really consider myself a part of these fandoms as I find fandoms are typically very... toxic. I just enjoy things and try not to talk to many people unless I can feel that vibe I'm looking for, you know? I am quite worried that I'll run into someone who would make me feel a bit sour about it! I am more a casual enjoyer of these things nowadays. :)