I’ve been doing this but even getting one community going takes work. I can’t launch them all, and I’m still contributing about half of the content to my community.

Lemmy is just too small for some topics to take off until we get another big wave of growth. In the mean time I think visiting a few niche subs is not going to kill anyone, and we can keep working to grow Lemmy at the same time. These approaches aren’t mutually exclusive.