It is really hard to keep up with all of the tools and companies, and changes, etc. in the AI space. So it’s very possible that you weren’t aware that Anthropic, the company that makes Claude, has about a dozen courses that can teach you how to use Claude.
All of it is free (for now at least). You can find them here - https://anthropic.skilljar.com/
They have a learning management system called Skilljar and you’ll have to create an account to access it.
There isn’t much else to say about it so I will virtually walk away here…