I don't know, I feel like this is a fish vs fishes situation. ie fish is already plural, but fishes is still, like, superplural - different varieties of fish is

I don't know, I feel like this is a fish vs fishes situation. ie fish is already plural, but fishes is still, like, superplural - different varieties of fish is fishes. Social media is a collective noun, I feel like if you want to talk about plural distinct kinds of media there's nothing wrong with saying "mediums"