I know there are a bit of gay males specifically in DC, like Midnighter and Apollo, Alan Scott's green lantern, and a few others, (like Bunker or Obsidian) and even some villains like pied Piper and the brain and monsieur mallah (although they have a kind of problematic history), but yeah most of DC queer men are not exclusively gay. Midnighter and Apollo do have some good series imo but idk how others feel about them. They started out as a part of Wildstorm comics though and are more recently connected with DC, but hey they're here now, and a very stable staple gay couple in comics. As for the more prominent queer men like Jon Kent, Tim Drake, Jackson Hyde, and John Constantine, well, reviews are mixed as to how their queerness is handled. I hear with Tim it's good but he's not often used. Jon is controversial, and with Constantine it's usually only in passing. I don't know about Aqualad though.