Here's what rhymes with tarnish.
varnish garnish Words that almost rhyme with tarnish
cornice warmish schoolmarmish donnish polish offish popish starfish dogfish dwarfish largish shortish garfish sharpish abolish astonish admonish codfish longish modish ravish hawkish mawkish swordfish waspish blondish hoggish blokish demolish impoverish smallish snobbish crawfish cloddish accomplish