I gotta disagree with you here. At least on the sub(s) that I still - on the occasion of big events - take a glance at. To me, Reddit comments are the epitome of staleness and predictability. Also, their user base seems like a bunch of 40-year-old dads that mentally peaked at 16, but keep getting more racist by the year.
Church events work fine, too. My buddy and me went to one in a damp basement and it was about 30 people. 100% women. Average age about 22 I guess. All were dancing. They all immediately started staring at us as if we were edible. Within the hour, my buddy met what would soon become his GF, and I was approached by this amazing girl. I then went on a string of remarkable dates with her.
The kicker: It was a Christian event, but the girls we hooked up with weren’t Christians at all.