There is not a direct way to pull a list of authors in a site, but a user with Company Administrator privileges can run a Users report to retrieve this information.
- Navigate to Reporting
- Click on Advanced Reports & Download Data >Administration Reports > Users
- Run in Comma Delimited (*.csv) format for filtering/sorting purposes
- Select whether you’d like to include inactive and/or deleted users on the Report Options tab
- Run Report > Open file
- Column AI (NumFoldersAuthorPrivileges) provides the number of folders that a user has been given authoring permissions to. If this field is blank, the user is not considered an author on the site. If this column has a value (1+), they are considered an author.