Oh heck am I glad I'm not the only demiromantic hunting for reps! Hello fellow demiro! <3 I've done lots of looking but I haven't really had much luck myself. I've had some trouble putting together pairings--getting a triangular design is surprisingly difficult--but when the Sandsurges came out with Darts I immediately ran out and set up this pairing:
As of right now I've got one baby from them up for sale, but I'd be happy to nest them for you if you'd like. He's up for 25g on the Auction House, but I can do treasure as well.
Honestly, I'd love to put together more pairings, because these guys are fun but a little visually busy and still not as clear as I'd like, but I haven't really been able to figure out any more yet.
Other than that, it looks like
AIR's Nursery had some a little while ago, but they're not up on the list now, so possibly a Pride Month special?
Friends of Dorothy had one planned but I don't see any updates since August 2022. I've searched around via forum search but I haven't found any results within the last year, so... apparently we are quite rare ':D
Regarding demisexual, I think I've seen a little more rep for them, but not much (I'm just ace but if someone recognizes demisexual there's a chance they'll know demiro (though apparently FR's vistas haven't cottoned on to that yet...)). I know
Sasha's Pride Hatchery has a pretty cool pairing, but I don't know how active they are right now. Outside of that, not sure--forum search suggests that there might not be any recent ones beyond that either :/
I don't have bi pride pairings right now but I know there's plenty around!
Best of luck! (And if you run into a demiro pairing or make one yourself, I'd love a ping if it isn't too much trouble. :) )