Pro Club tutorials cover the most interesting and creative techniques.
We recommend subscribing to Pro Club after students finish "The Complete Guide to Product Photography" certification program, as the program covers A to Z in product photography and the best for people without much experience.
As for the individual courses listed at the Photigy e-store, they are helping photographers to get better in specific areas of product photography, such as jewelry, etc. We recommend them for established photographers.
So, if you do not have much experience in product photography, the best way to start is to join the certification program: https://www.photigy.com/school/the-complete-guide-to-product-photography/
Hope this helps.