Having your own Facebook group is a great way to grow a tribe of followers. These are the people that will invest in you and eventually buy what you recommend.
How do you get started with making money using Facebook groups?
You have to create a community that is for your audience. From what you name your group to what daily posts you create, your group has to be authentic and wanting to learn from you.
If you position yourself as the authority in your niche, then your audience will pay attention to you and buy from you.