My main Strategie is to Daily post, and for communitys where thats hard, having a good consistent scheduel st the least is always good.
Also always Crosspost if possible. Crossposting was the main way how back in the day, I got my Faivourite reddit community from 1000 to 10000 Subscribers, and it still work pretty well here as well
Not all apps show crossposts yet, or don't do so prominently. And a post going big in one community, can cannibalize all the other cross-posts due to de-duplication, meaning only one post gets the lions share of votes.
I've since changed my posting tool to actually make the various cross-posts at different times, instead of all at once.
This works well with my communities as art isn't time sensitive, and it's also kind of an excuse to re-post something a couple times, so different people can see it.
Not all apps show crossposts yet, or don’t do so prominently. And a post going big in one community, can cannibalize all the other cross-posts due to de-duplication, meaning only one post gets the lions share of votes.
It doesn't actually do anything. I usually remove it because it's just redundant, and the link takes you off-instance 99% of the time. Also it only works in one direction. The proper cross post links appear on both/all three/or more posts.
The webUI shows cross-posts as little links in the post info, and some clients do something similar.
Photon handles it well, and Thunder has had basic support for a while. But I'm looking to make it very easy to hop between several posts by displaying some details about each one in a list, like votes, comment count, and post date.