Redfish rhymes with:
goldfish, guardfish, swordfish, angelfish, bottomfish, catfish, crawfish, cuttlefish, dealfish, dogfish, flatfish, goldfish, goosefish, guardfish, icefish, jellyfish, jewfish, lungfish, needlefish, pipefish, queenfish, sailfish, shellfish, starfish, sunfish, swordfish, whitefish
Redfish sounds like:
radabaugh, radebaugh, ratifies, raudabaugh, redbook, rodabaugh, rodebaugh, rothfuss, roudabush, roudebush, rutabaga, rutabagas