Training companies or classes

Looking for the best options for Sketchup classes or personal training. I work for a company that mostly specializes in steel buildings or smaller commercial buildings. We want to take our use of sketchup to the next level to help in marketing and such. I have most of the basics down but looking to be able to get more detailed or more of that wow experience for the customer. Any help with this would be appreciated. I’ve looked online and found some options but just curious if anyone has any experience with any of the companies that put on training.