Here is a hack for all you FREE PUBLIC community owners.
Create a course inside of your classroom and drive them directly to the course.
Not sure if you knew but when your group is public you can bring anyone to any post, tab, classrom etc and it works like a charm by copying the link and sharing that instead of the about page link.
Using community for this example... You don't have to be a member and this is a great way to show people what's inside your group and get them on the platform instead of sending them to the about page.
Has anyone else done this?