Treehouse is active in the Information Product sector. They used this Free Trial and Onboarding Email Sequence to offer their Online Courses Membership.
The first step is an introduction of their product. The next steps contains of your free trial membership. During the free trial they use onboarding emails in which they recommend "next steps" for your study. This is a great way to maintain top-of-mind awareness during the free trial and it gets free trial users invested in the product. The last step is announcing the ending of your free trial and automatically renew to the paid version.
Read more about Treehouse here: https://teamtreehouse.com