Greetings @armandmeuruno , your publications can be made in the community that you want, as long as they are of variety, for example you can not publish something about health in steemit crypto academy or in steem sport, or newcomers community, these are communities focused on a specific topic but there are some that admit variety, it is important to know the rules of the communities, they usually have an active weekly update publication, apart from this remember to use the labels well, which are consistent with your content to be published, good luck.