Have you tried Adafruit's make code? https://makecode.adafruit.com/ Visual programming for javascript with options to interact with their Circuit Playground hardware.
It's, of course, not an entire ecosystem for everything, but they do a lot of visual things that may be worth evaluating. I like the colors/shapes of the code pieces, and the ability to switch between the visual code editor and the plain js.
Comments
Have you tried Adafruit's make code? https://makecode.adafruit.com/ Visual programming for javascript with options to interact with their Circuit Playground hardware.
It's from Microsoft, with flavors for Mincraft and Legostorm too, https://www.microsoft.com/en-us/makecode .
It's, of course, not an entire ecosystem for everything, but they do a lot of visual things that may be worth evaluating. I like the colors/shapes of the code pieces, and the ability to switch between the visual code editor and the plain js.