Where can I find those types of "homework assignments" where let's say a company sends you a sample project and asks you to add few features where in that way you learn new technology in a practical way?

I know there are some public "homework assignments" projects from Wix where you're given a sample project that uses let's say react framework and typescript where you have to learn react and add features and send it.

These projects IMO are the best way to learn new technologies fast instead of going through the documentation and figuring wth are they talking about before you realize the full potential.

Are there any of those "awesome lists" in GitHub or something? No I'm not talking about "algorithms and data structures" type of thing, I'm talking real practical samples that I can learn from and extend it.