Advanced data science resources?

Not sure if this is the right place to ask. Currently, I am about halfway through my Data Science Career Path on Codecademy. I’ve been wondering where I can find more online resources to dive into the actual use of data science. Like more advanced stuff on how to use statistics, correlations, etc. Codecademy covers mostly the coding part and very little about the actual use of data except through superficial examples (not meant as a criticism, CA should obviously be code-oriented). I think that’d a good side-learning activity when I’m taking a break from the coding or when I’m in a situation where I can’t code.