course: Guide to ReactJS @egghead.io

free: React fundamentalsThe Beginner's Guide to ReactJS from @kentcdodds on @eggheadio

React sample template
Editor - CodeSandbox

PWA Builder: tool for Progressive Web Apps

Generate your Progressive Web App
PWABuilder
open source by Microsoft

PWA Builder Docs

info from:
MS Dev Show Podcast

online web ide: CodeSandbox.io

CodeSandbox: Online Code Editor Tailored for Web Application Development

Editor - CodeSandbox (React)

Vue Template - CodeSandbox

Vue with Vuetify - Eagles - CodeSandbox

React vs Angular vs Vue | Philly.NET 
PhillyDotNet - YouTube - YouTube
phillydotnet - Mixer