The Cobalt Strike training web page has been updated. https://www.cobaltstrike.com/training/
The training web page lists free courses created by the Cobalt Strike team that provide an overview of the product. It also lists courses offered by trusted 3rd parties. The 3rd party courses use Cobalt Strike to some degree and can be a great way to practice and learn how Cobalt Strike can be used in a realistic environment.
The page will be updated as new courses are added.