Here’s mine, The Vampire Skull is action/fantasy novel series with a BL slow burn subplot.
Once a powerful vampire, now only a skull with no memories buried underneath an old oak tree for no one to find. That is until the adventure-loving Ellie picks him up— discovering he can talk, she names him Skully, and decides to help him find his missing memories. They quickly learn that not everyone wants Skully to find his memories, nor his body. Ellie gets help from her new roommates as they move to Dawn— two vampire hunters, Luke and Artemis. They soon discover that not everything is as it seems in the city of Dawn, even the skull has a dark past.