Sell Courses on Udemy / Skillshare

If you know something well enough to teach it, there's a platform willing to host and sell your course. Udemy instructors earn an average of $7,000/year, but top instructors in high-demand topics (Python, Excel, Figma, data science) earn $100K+. Skillshare pays per minute watched — prolific creators with 20+ classes earn $2K-$10K/month. The effort is front-loaded: recording, editing, and marketing the course takes 50-100 hours, but revenue continues for years.