You can use Stepik for creating paid courses.
A paid course is a course for which students must pay a set price. As an example you can see https://stepik.org/course/15001/syllabus
You can pay for courses at Stepik with your credit card via Paddle. This system is also used for transition of money to instructors.
Features of paid courses
- Paid courses can be seen in the catalog and the profile, as well as accessed via a link.
- Unlike all the open courses at Stepik, paid courses are not subject to Creative Commons BY-SA 4.0