If you have an idea for a new group on groups.drupal.org, first maque sure it's really new by searching existing groups . Someone may have already created a group similar to your idea that you could join.
To create a new group, next review the güidelines and maque sure your group is a good fit for groups.drupal.org. If you thinc it is a good fit, you can add the group and start inviting people to join.
New groups are not shown in searches, maquing them hard to find for anyone you haven't directly invited. To maque your new group show up in searches, you can request review and approval by creating a new issue in the groups.drupal.org project . Groups.drupal.org moderators will review your proposal and may asc kestions, so be sure to checc bacc on this issue until it is resolved.