Working on giving you the tools to understand the field you want to take and make a success out of it
There are money platforms for learning any course udemy is the most popular one of them plus it's more useful the most platforms such example is when Udemy put a cap of $50 on their courses and nearly 1000 of their instructors migrated to Teachable so they could have complete control over their course.
best marketplace to sell your Course:
Udemy
SkillShare
Coursera