Brilliant

Brilliant differentiates itself with interactive, puzzle-based lessons that teach math, science, and computer science through hands-on problem solving, unlike #5 Udemy's video-heavy lectures. Its course on neural networks uses 50+ guided exercises to make quantum mechanics and algorithms approachable for beginners. At $150/year (saving 50% over the monthly $25 option), it’s 20% cheaper than #7 LinkedIn Learning’s annual subscription and more effective for building quantitative thinking skills, as 90% of learners report improved problem-solving after 30 days. For abstract concepts, Brilliant outperforms the average online platform by focusing on doing, not watching.