Moodle is an open source learning platform that you can use to create online courses for your students. Thanks to the Edwiser Bridge plugin, you can integrate Moodle with WordPress. This plugin lets you sell your courses via PayPal. It has a bunch of add-ons for WooCommerce integration, bulk purchase, and single sign-on.
Thanks to this plugin, you can import your courses, sync data for users, and sync Moodle categories to your site. You can also set access time for your courses, enroll/remove users, and automate user registration. You can also use this plugin to connect your Moodle site to multiple WordPress sites. Automated 2-way synchronization between your sites is also supported.