Who sells Cod herring and mackerel?

It's difficult to give a definitive answer to who sells cod herring and mackerel without more context. To give you the best information, I need more specifics.

Please tell me:

* Where are you located? Are you looking for a specific store in your city, a website, or a wholesale supplier?

* What kind of product are you looking for? Fresh, frozen, canned, or smoked?

* Are you looking for a particular brand or type? For example, do you want wild-caught mackerel or farmed cod?

Once I have more information, I can help you find the best places to buy cod, herring, and mackerel.