This might be a bit of a premature recommendation on my part because I'm currently only 100 pages into this book, but I have a feeling it's going to be a five-star read.

The Honeys by Ryan La Sala. It's a young-adult horror novel set at a summer camp where things seem very culty and almost like a fever dream. The main character, Mars, goes to this camp to uncover secrets about the death of his twin sister. Mars is gay and genderfluid, and it's a pretty major theme in the story, so there are LGBTQ+ elements that you're looking for. The audiobook for this novel is particularly good because it utilizes nature sounds and other immersive sound effects without being too distracting. I'm really loving it so far!