There are many community projects out there but not all of them are equally big and equally democratic.
The Fedora project is quite big and organizes hundreds of contributions and contributor in a democratic way with various groups and places where you as well as any other community member can be elected:
https://docs.fedoraproject.org/en-US/project/orgchart/
Feel free to join us and participate. You don't need to be a developer, a translator, an innovator, a supporter, …
Make your voice heard!