Twitter announced a few months ago the launch of the Communities feature that brings together people with common interests in a kind of group. The format promises to make it easier for users to find other people with similar tastes on the platform.
However, the feature was not yet available to all users, Brazilians, for example, could not use the tool yet. But the winds have changed, and now tweeters in Brazil can have their own communities.
When joining a Community, members can publish tweets within it, and only Community participants can see and respond, even if they are not each other's followers. For now, there is no space to search for a Community, you need to have the access link to one of them.