I just find a new course that might interest some people. It was just published a few days ago.
I am not related in any way to packt publishing, nor I want to spam the forum. But the offer is now available for less than 5 Euros (96% reduction). Take a look if You are interested
Merry christmas and happy new year.
The author also has an older course called Getting Started with Elixir: https://www.packtpub.com/application-development/getting-started-elixir-video