Found this nice series of videos at Laracasts, very well done, just my speed. A good place to dig in and see how React coding happens.
Okay a little later, and I've found another intro. Again, quite good. This one goes rapidly, so even though both are intro, I would put this one at a little more advanced.
Lastly, my first actual coded app was this demo from c-sharp corner. That's me in the comments giving a bunch of tweaks on how to make it work, which was a good learning experience.