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
If you want to make your course a paid one you should send to firstname.lastname@example.org:
- Link to your Stepik course.
- The price that you want to set for the course.
- Names and amounts of discount coupons, if you need them.
- Your Vendor ID from Paddle.
Students buy your course directly on Stepik, we take 12% commision from each payment and transfer the remaining money to the authors via Padddle, so you need to create the account on Paddle https://vendors.paddle.com/signup and choose the method of withdrawing money that suits you.