Some databases and platforms automatically create a user profile. If you have published a journal article, you will have a researcher profile in Scopus (Scopus ID) and/or Web of Science (Researcher ID).
For other platforms such as ORCiD and Google Scholar, you will need to create a profile. At the very least you should have an ORCiD profile, which can talk to other systems like Scopus, Web of Science etc.
What are the benefits?
Once you have published your research, you can use promotion strategies to reach a wider audience (and increase your citations). Here are some tips on promoting your work: