I was thinking the same thing, I’ve been collecting things since I was 5 years old before Pokémon was even released (minerals/fossils and post stamps). I kinda stopped both of those collections, although I do buy a new mineral/fossil once or twice a year on average perhaps; these days mostly just nice display pieces for my living room.
My most active collection right now are Seviper non-TCG items (wanted list), so I’d probably continue with that for the most part. But I’d probably also try to continue my Yu-Gi-Oh rarity collection more active if I didn’t collect Pokémon TCG cards at all anymore, which has been put to a halt almost entirely these past few years.
I’d probably resort to books and minerals. I am a big opal fan although I don’t really have much to show for it.
I also love the covers of old sci-fi books. Recently I’ve been picking up Issac Asimov books but I’d happily diversify.
Also I included some me of my pokemon books I’ve picked up within the last year or two.
I collect a lot of video game statues. Due to their size though I don’t know how many I could continue to add. If i didn’t collect those i would love to collect skateboard decks from the 90’s
