Hey @Jims02420! Welcome to the forums!
I think there might be some confusion- as far as I know Metahumans aren’t related to any starter content directly. Also, starting with 5.6, Starter Content was replaced by the Variants! Variants are more specific versions of templates. For instance, in First-Person there’s “Arena Shooter” and “Survival Horror” and each gives different additional starting content. 
For any Metahuman related stuff, go to "Edit->Plugins->Search “Metahuman” and enable any metahuman related plugins!
Hope this helps!