There is actually a resource very much like this on the way. Right now the tutorials on the sdk site are a great way to get familiar: https://sdk.dfinity.org/docs/developers-guide/tutorials-intro.html
I’d also recommend the education repo: https://github.com/DFINITY-Education
And some example project repos along with the Motoko base library code itself, which is a great reference, see here: https://forum.dfinity.org/t/how-to-learn-motoko-with-no-experience/1643/5?u=ori