It's probably way easier to decide on a subject you want to learn more about, and find the most approachable textbook / lecture notes on e.g. StackExchange. It

It's probably way easier to decide on a subject you want to learn more about, and find the most approachable textbook / lecture notes on e.g. StackExchange. It doesn't make sense to choose courses (or even subjects to learn) based on whether video lectures are available. I don't maintain a collection of these, but I can probably recommend * Stephen Abbott, Understanding Analysis, for mathematical analysis and a little bit of real analysis * David Williams, Probability with Martingales, for advanced probability * Dym and McKean, Fourier Series and Integrals Alternatively if you have a more cursory interest, you can probably check out Metacademy [1] which provides roadmaps to learning a variety of math (and ML) concepts. [1]: https://metacademy.org/browse https://metacademy.org/browse