I've been mentoring a veteran who's learning to code.  He's looking for more sources for training on the side.  I've taken many courses over the years.  Some of them have been great, and some have literally been a complete waste of money.

I've compiled a list of courses I'd recommend for anyone getting started in web development, advancing their skills, or picking up React/React Native

HTML/CSS/JavaScript

A Veritable Smorgasbord Of Developer/Designer Training Resources

General JavaScript

React:

React Native:

Github Training

Github has a Learning Lab with tons of resources.

Screenshot of a tweet about the Github Learning Lab. Follow link for complete description.