Psychotherapy practice seeks learning management system (LMS)

I am looking for software for my practice as a didactic architecture - for online courses with educational and coaching features. The software should be usable in the areas of training, online seminars, learning culture support, and coaching.

The software should meet the following requirements:

• Video production
• Audio
• Composing training units or modules
• Learning on demand
• Feedback
• Free texts from learners
• Learning transfer
• Blogs
• Exchange platform
• Conferences
• Payment system
• Landing page
• E-books
• PC, tablet, and smartphone compatible display
• Updates can be added
• Updates over time
• Web-based, internet-based

One to two software workstations are planned. I myself work with an MS Windows system.