I have several courses, books, and video platforms I learn from.
One of my recent discoveries is Testdriven.io, a website dedicated to full-stack web development with Python and TDD.
I purchased the Microservices with Docker, Flask, and React course in February.
I'm happy to say that the author updates the course regularly. This proves to be invaluable, as outdated courses are a waste of money.
You begin by setting up Docker with Python and Flask and I already learned a lot.
I still find it hard to grasp some of the TDD concepts. But it's good to see how I could get started using the principles. For USD 40, this course is a steal.