Actually, I already prefer AI to static training materials these days. But instead of looking for a static training material, I treated it like a coach.

Recently I had to learn SPARQL. What I did is I created an MCP server to connect it to a graph database with SPARQL support, and then I asked the AI: "Can you teach me how to do this? How would I do this in SQL? How would I do it with SPARQL?" And then it would show me.

With examples of how to use something, it really helps that you can ask questions about what you want to know at that moment, instead of just following a static tutorial.