I've been building a SaaS in the sales training / skill development space and I'm running into a problem I didn't expect: I have no idea where the people in this niche actually hang out. I've had some success on Reddit because people are incredibly honest about their struggles there, and I've learned more from a few comment threads than from weeks of guessing. But it feels random. One post works, ten others don't. What I'm really trying to understand is how people who are good at marketing...