1. "Best Lecture Series": https://news.ycombinator.com/item?id=34591291
2. "Top Coursera Courses": https://news.ycombinator.com/item?id=25245125
3. "Best MOOCs": https://news.ycombinator.com/item?id=16745042
4. "Coursera Courses": https://news.ycombinator.com/item?id=22826722
There are some great recommendations and some of them are among the best MOOCs that I have ever taken.