Drupal 8, React, Vue, JSON API and ES6 learning resources
You can start your journey with this website from Lullabot education React ❤ Drupal. Then when you are ready to get your hands dirty, give Contenta or Reservoir a try. Have a look at Dries' post about How to decouple Drupal in 2018.
If you are still hungry, here are some clues.
Updated on 22 August 2018