I too have a kind of "collecting personality," so I have to be careful with my wallet and my space!
But I do collect video games (collecting for the original gameboy is my favorite), books (switching to ebooks helped a lot), ball jointed dolls, some playline dolls (monster high and barbie), blythe dolls, old tech (ipods and phones), cds, cassette tapes, and rubber stamps.
Not all my collections are "active," but I always enjoy going back and looking through them.
Pokemon cards - specifically, I collect ex cards from the 3rd generation! My collection is nowhere near complete, and it includes a lot of damaged cards, but I DO have a mint condition Charizard ex that I'm particularly proud of. I desperately wanted one as a kid, and now I finally have one! :3c
Besides that, cool rocks. My sister and I really want to get into rockhounding so we can smash open rocks for fun. I'm trying to do research into places where we can rockhound without disturbing state or national parks, and so far I've got a couple of places pinned down on a map for future excavations!

tamagotchi and digimon v pets (✿´ ꒳ ` ) i play with them too so i really just collect the ones i want to play with rather than ones that are rare or whatever i also collect digimon cards from the current tcg and basically anything else digimon i can get my hands on lol
I have... Way too many collections of things. And I feel like I have not stopped collecting certain things. xD Whether it be Pokemon Cards (3588 cards and counting), Enamel/collector's pins (389), Stickers (that I turn into magnets to display better, 471 so far), button pins, notebooks (that I still haven't used), Mythology (Egpyt and Greek), Dinosaurs, Fossils, Eeyore, Etc. xD
When I was younger, it was like, beanie babies, barbies, etc. Just a lot of things. But I have rolled back on some of it and gotten rid of a lot of things too. Even with the ever-growing collection, sometimes you just grow out of things.

Wearables on subeta mainly, lol. In real life I kind of collect books and manga and anime figurines... I stopped collecting a while ago though, not sure if I'll get back into it. Let's see Oh and as soon as I move out I plan to collect awesome mugs!
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I enjoy collecting Re-ment sets (miniatures), enamel pins, game consoles/games, and vinyl figures. I also have a small tamagotchi collection I'm trying to build up after getting back into it recently.

I never can pass up a good Eeveelution plushie.. but I mostly collect Inuyasha merch; the 12 year old fangirl inside of me is completely geeked that there's so much of it out now, and I can buy it ALLLLL! It's even in my local Target. Two of my friends gifted me the same exact blanket, and I was so thrilled I put one up on my wall like a tapestry and I use the other for comfort.
Funko Pop!s - but only characters I like, and random comics!
Giant folder of all the pretty pictures I've saved off Twitter. At least 5GBs.
I collect stickers, bones, plushies, purses, rocks, and tarot decks.
I collect way too much honestly.
Pokemon, Digimon, Disney, TWEWY merchandise. I'll also pick up small figures/pins/etc for other things I like, but those are my main focuses.
Also stickers. I love stickers. I always buy more and say "oh I'll use them in my planner/journals" and uh. That doesn't happen. I just hoard stickers.
I have a book hoard. And jewelry. And... plushies. Also more lipsticks and makeup palettes than I use.
I may have a small problem. :'D
I love collecting things. My favorites to collect are rocks/crystals/minerals, and tarot decks. I also enjoy collecting dice and plushies. I used to collect Magic cards, but I don't play much anymore, so I've lost interest in growing my collection.
I collect everything, I have more anime collectibles than I have space more. DC, mainly the Gotham Sirens. Pokemon Cards(before it was cool), CD's. Anime and Manga, Video games, plushies, Alcohol bottles.. I have a Tequila bottle in the shape of a revolver. Smoking paraphernalia such as pipes and bongs. Hats/Beanies. fabric posters. Shot glasses, random TCG cards, I've been getting alot of Demon Slayer cards recently. Kingdom Heart's and Final Fantasy games and anything related to it. jewelry like rings, earrings, septum horseshoes, necklaces, bracelets. My little pony toys. Keychains, Stickers knives, swords, weapons in general.. Funko Pops. Band and anime shirts.... And because of my inability to let animals just sit out and die I've found myself with a collection of cats. XD
... I just realized I collect a lot of shit... Maybe i have a problem.. XD
pokémon (got a living dex), pokémon cards (specific sets, not general), tsum tsums (in general loool), bts photocards :>
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Tee-Turtle shirts apparently... and Pins from hot topic. Not just enamel pins, but the witty ones. I have quite a bit. Some are from fandoms and some are just silly quips. But I like covering my bags with them.
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