Hello, to build a community you only need to build a niche, that is, to establish what you want your community to be about, to be able to write creative and original content on that topic and in this way they can support each other among all users, but they can also ask for support from others.
The meaning of making community is directed in the sense of helping each other, educating yourself, learning from the members of the community, how you can collaborate with each other.
Everything is a matter of organizing as a group and support.
I hope, I have been able to give you an answer.
Good vibes.