So I don't think that it gets more generic in the Reddit sphere than /r/Gay. I mean, this place has the million-dollar name that makes it one of the top destinations on the Reddit community to find yourself some of that big dick and tight ass action. There are currently more than 20,000 subscribers here and with an established connection with a number of other subreddits, it basically acts as a nice portal for information and details on what you should be doing to get the most out of your gay experience.
/r/Gay has content ranging from news stories about people attacked at gay pride marches through to comics about gay bros using glow in the dark condoms to have light saber fights with their partners. So yeah, you get the super serious stuff and then posts about LGBT event attacks. Come on now, you know you laughed.
Anyway, head on over and check it out. /r/Gay is a great place and it'll help you get into the proud gay Reddit community.