It's about 9 years old I think so might be too out of date for you, but I've been really enjoying it. I think they have an advanced version of the course as well if you're already familiar with the basics
Udacity also hosts the GT Advanced Operating Systems course: https://www.udacity.com/course/advanced-operating-systems--u.... AOS is not a "how to" course, but rather a tour of the challenges operating systems may face (distribution, fault tolerance, scale) and of academic papers attempting to solve them (mostly from the 90s and 00s). As such, the material might not be a good fit for the original post, but this commenter found it fascinating.
The reading list is here: https://www.udacity.com/wiki/ud156-readings