Webinar/ Courses

Teach an online class to establish yourself as an expert. Examples:
One of the best example and a great teacher is Web Bos and his programming courses: http://wesbos.com/

https://www.podia.com/guides/how-to-create-an-online-course

Tools:
https://www.withcoach.com
https://www.femtrepreneur.co/blog/how-to-create-a-webinar-free
https://teachable.com/