there should be an aggregator for all of these instances: https://join-lemmy.org/instances
because my first instinct guess is, there's going to be huge overlap on submissions daily
there's only so much new news daily and a certain niche of people who read it/contribute
scattering them out to a bunch of obscure niche places probably doesn't help
there are even boring days on HackerNews. how many monthly active users does this site have roughly? 500k? 1m? way less?