Hello! I’m sorry I’ve held your ask for 2 days, I was thinking about this and trying to come up with a good answer, but you’re probably better off with an answer from @gothiccharmschool, @annabellioncourt, @fyeahgothicromance, @forthegothicheroine, @sanguinivora… if anyone wants to answer @radiatorfromspace about this, please do!
Re: canon or AU, I’m not sure if you’re looking for fanfic or published fic. As far as published fic, tbh I don’t really read other vampire series than VC 😛 I used to read Christopher Pike and Poppy Z. Brite but I barely remember them now. I never actually read Dracula (the h0Rr0r! I am a terrible vampire fan) but from what I understand, it would have the atmosphere you want but may have characters that turn into passive, thoughtless pawns devoid of personality. I think that may be why I’ve struggled to get myself to read it, that’s not my thing, either.
As far as fanfic I mostly read VC fanfic, and I can’t say that any of the fics I’ve read do that to our characters… in canon we do have some vampires who go into a kind of sleep/vegetative states for periods of time (called “going to ground,” and sometimes involves them actually burying themselves and staying underground for years), and one might say that fledgling!Nicolas was a passive, thoughtless pawn devoid of personality when he was first turned, but he snapped out of it when given the right stimulation. So I think sometimes that state is temporary if it’s incorporated into fic.
I also struggle to pick out authors of fanfic bc I can’t think of one that has both the atmosphere and the vampire romance… I feel like most of my fave authors spend SOME time on atmosphere but more time on the characters’ interaction, dialogue, the plot, etc. Our series is pretty heavy with purple prose so we tend to use it sparingly in fanfic.
IF YOU REALLY WANT THAT ATMOSPHERE YOU’LL HAVE TO GO OUR SOURCE. I’d suggest that you read Interview with the Vampire or The Vampire Lestat and JOoooooOOoooooOIN US! ❤ [Me: attempts to steal a very talented fic writer from their fandom into ours]

^It’s a movie but worth mentioning bc I think you’d like it: Only Lovers Left Alive is, in my opinion, an example of an atmospheric vampire romance without shoving the romance down your throat; it’s subtle, but it’s there. Also:
- Although the characters are pretty sedate most of the time, neither character in the central ship turns into a passive, thoughtless pawn devoid of personality.
- I think this would appeal to you bc there’s a lot of tenderness, with a good dose of silliness, too.
- It’s got a good mix of spooky + pretty aesthetic, being set in crumbling Detroit, it shows the beauty of things that might look run-down and of little value at first glance.
- BONUS: It stars Tilda Swinton and Tom Hiddleston as the main ship and they are A++++

^Similarly, there are two adaptations of novel Let the Right One In. I didn’t read the novel, but have heard great things about it, although it is darker and scarier in nature than the adaptations. The first of the 2 adaptaions has the same title as the novel and I think it’s the better of the two. The second one, the American version, is called Let Me In.
While it’s not a romance between ADULTS, it’s got atmospheric vampire action and I would say that it might fall under a YA kind of romance feeling. I’ve read some of your fic and I really think you’d like this bc it has a lot to say about giving/receiving care, being vulnerable, and those first feelings we get about “I love my friend so much and I am afraid of scaring them off by letting them know, I want to be closer to them but not at the cost of hurting them.”
I hope that helps, again, anyone is welcome to comment/reblog with reccs for @radiatorfromspace!