CourseDuck founder Michael Kuhlman was nice enough to point me to their overview of curated (&free!) Python courses and tutorials.

This overview is curated in the sense that all resources are rated by CourseDuck’s users. These ratings seem quite reliable, at least, I personally enjoyed their top-3 resources sometime the past years:

Note that all these courses, as well as the curated overview, come free of charge! A great resource for starting data scientists or upcoming pythonistas!