[dannygarcia]

I would say Roughgarden's four CS Algorithms courses on Coursera are somewhat more advanced than CS50: https://www.coursera.org/specializations/algorithms

It covers foundational topics like asymptotic notation. However there is some reading required if you a C in high school calculus like me.

[kyawzazaw]

CS50 is more like a intro course (although it just keeps growing so much).