You might get more useful responses if you share some more specific information about your community (what kind of community is it? How are you promoting/sharing it now? etc)
There’s some good general advice on Meta about this, and we also have a quick blog post with some tips.
https://meta.discourse.org/t/how-to-build-a-community/13819
There are also a lot of resources about community building/management on https://www.feverbee.com/
You might also find some more relevant topics in the #community category