Hi all - I actually hold my Google Analytics Individual Qualification and teach workshops in it (primarily for business owners with WordPress sites, although I’ve run a WordPress developer version). I’ve taken all the classes @HAWK mentions and some others.
I haven’t done a workshop specifically for CMs - mostly because I’d need someone with forums with decent traffic who was comfortable with me using their data as an example to do such a workshop - but if you have questions feel free to ask and I’ll be happy to help.
If you are considering earning GAIQ I’m also happy to talk to you about that, but it’s not really a needed step unless you work for an agency, specialize in analytics, or want to teach. The test is pretty hard these days, so it’s not something with a low time investment like Hootsuite Academy or Hubspot certification.