Goodkin rhymes with:
buckskin, bushkin, deerskin, drabkin, foreskin, pigskin, redskin, sheepskin, shokhin, waitzkin, witkin
Goodkin sounds like:
gadson, gatson, gietzen, godkin, goedken, goetzman, goodgame, goodison, goodson, gottesman, guadagno, gudgeon, gutzman