The instructor of this course is highly regarded according to a friend with knowledge of this area so I decided to give it a go. I found that if you drop him an email and say really nice thing that he will send you a discount code ;-).
Course URL: https://www.voitanos.io/products/mastering-the-sharepoint-framework-fundamentals/
My Notes: https://docs.google.com/document/d/1RF-Ab_fuu_Ubld-a-AMsKNry45GhVq0Iv-40hcaT3zg/edit?usp=sharing
