I would start by looking at companies like JBA, for example, other engineering firms, large and small, if, as this sounds, it is a ready to go product and isn’t too specific to JBA, you should be able to get some calls. You and your husband hopefully will have built up a network of friends, and through your husband’s work a network of young people who he will have “touched” during his coaching days. They will also have friends who are likely to be potential clients with the right skills to help you with how to put this up as a product, what to charge and so on. I would start with this group.
There are also Software as a Service and Digital experts on this panel who could point you in the right direction.

I hope this helps