I’m actually happy to talk about LW centralization at large. It’s a topic I like to discuss on !fedigrow, feel free to join us there.
To come back to your questions, there are different types of communities depending on how popular the topic is
very popular topics (tech, news, memes, politics) exist on Lemmy on a lot of different instances. !technology, !technology, !technology, etc. They are all active, no need to worry about those.
moderately popular topics: in this case, usually there is a large LW community, and then a smaller non-LW community. A mentioned “movies” above as an example, there is a whole list at the end of this post.
low activity topics: here, there is only one community, and it’s not that active. It is on LW, but the community is already so small that getting it active is a higher priority than bringing people to another instance. Examples: !football, !parenting, !television, !avatar
I feel like StarGate probably belongs in the third group, which is why I suggested you to consolidate with the existing LW communities.
Also, lemmy.ml have faced some powertripping complaints:
Extremely weird considering you run a generic fantasy community which already exists in many places so felt a little kettle/pot.
Interesting, I had actually forgotten about that community, which is why the last post there is 2 months ago. I’ll probably close it in the coming weeks and redirect elsewhere, after asking the community feedback.
On the other hand, I actively post to all of the following communities, to try to keep them off LW
Spreading of the 100 biggest Lemmy communities (media.gehirneimer.de)
https://gehirneimer.de/media/cache/resolve/entry_thumb/3f/93/3f93a1af4263b9bf619fdb8678fd0ab2e3df765c83e302fcacc479fb5fe11907.png...
Weekly active communities promotion thread
Hello,...
600 more active users in the last few days, from 47225 to 47827 in two days
Source: lemmy.fediverse.observer/dailystats...
Weekly active communities promotion thread
Hello,...
Weekly active communities promotion thread
Hello,...
Weekly active communities promotion thread
(Previous version of this thread was posted on !fediverse )...
Active communities promotion thread
Hello,...
[email protected], to share art from imaginary settings
!imaginary...
A list of casual communities on Lemmy (that aren't just tech news or politics)
Searching Lemmyverse is good for finding communities. !trendingcommunities is also a nice tool for finding new places....