How to roast.
Fish swim in schools.
Let that guide you as you prepare them. You frequently can substitute fish in the same schools if the fish you want is hard to find or expensive. Try starting with some of the more familiar types in a given school and, when adventure calls, substitute one a bit more exotic. Sole, snapper, flounder, cod, pike, porgy, halibut and haddock. Light-color flesh and a mild taste.