Ask HN: What are the best online resources to start learning AI (examples)?

I've found that there is no lack of resources (there is almost an excess of resources) but what I am trying to find is which one is the best. I've listed some examples below. If you have any recommendations or advice, please share:

Intro to Artificial Intelligence [Free Intro] https://www.udacity.com/course/intro-to-artificial-intelligence--cs271

Deep Learning Specialization [Andrew Ng] https://www.coursera.org/specializations/deep-learning

Artificial Intelligence (AI) [Micromasters] https://www.edx.org/course/artificial-intelligence-ai-columbiax-csmm-101x-4

Artificial Intelligence Nanodegree [IBM] https://www.udacity.com/course/artificial-intelligence-nanodegree--nd889

Thanks!