Finding iMac usage training and classes

Go to Google and search for Macintosh User Groups in the Bar Area - start with your location. They have meetings where they have guests demonstrating their software. Contact the MUGs to see what they have in the way of training along the lines you're interested in. MUGs are great resources and you're in a prime area for them.

Some that I found are:

San Leandro User Group: SLMUG

Silicon Valley Users Group; SVMUG

Diablo Valley Users Group: DVMUG

Berekly Users Group: BMUG

I used to live and work in Livermore so am familiar with the user groups in the area.

This is in addition to what Chattanoogan suggested in his first post.

If you live anywhere near an Apple Store, this program is hard to beat.

Today at Apple - Apple

Hi,

Apple is active to train how to use Mac, macOS and applications at retail AppleStore regularly. For more information about the training, you should contact Apple Support and ask about when it is held at your local AppleStore.

If you use the search, there is much to find and see here:

The Official YouTube Apple Channel 👍🏽

Being in the Bay area I’d think that you’re “blessed” with Apple opportunities.

Transitioning from decades in the MS environment to Apple in “middle-age”; I DEF had a learning curve to climb.

I lived and worked in several similarly “Apple Store Rich” environments and learned much from the different presentations and styles afforded by the varied personalities in the different locations.