Globalytica has a Presentational Tradecraft course - don’t know how often it is offered.
I haven't taken this myself, but I've heard that the training through Product Marketing Alliance is good. They seem to have a section dedicated to CI. https://certified.productmarketingalliance.com/p/product-marketing-certified-core
The Academy of Competitive Intelligence (ACI) and Institute for Competitive Intelligence (ICI) are the two that come to mind.