Sensei is one of the most complete LMS (Learning Management System) for WordPress websites. It is fully compatible with WordPress and has easy features for creating content like courses, lessons, quizzes, etc.
Sensei can be easily used with any WordPress theme if it meets the general standards. Users can keep track of their courses and progress through the dashboard.
Also, it is compatible with WooCommerce, so you can sell the courses and lessons to visitors.