Home cooks struggle to find authentic ingredient substitutes for regional/specialty seafood

Home cooks attempting to recreate authentic recipes encounter ingredient availability problems when specialty items like ground crayfish aren't accessible locally or are prohibitively expensive. Current solutions (generic online searches, asking in forums) are time-consuming and often yield unsatisfactory substitutes that compromise dish authenticity. Cooks lack a reliable, curated resource that matches unavailable ingredients with proven alternatives based on flavor profile and culinary function.