Tarnoff's rhymes with:
spinoffs, castoffs, cutoffs, drop-offs, dropoffs, hoelterhoff's, knockoffs, layoffs, payoffs, playoffs, ripoffs, selloffs, spinoffs, standoffs, takeoffs, tartikoff's, tartikoffs, tradeoffs
Tarnoff's sounds like:
thrombosis, tramps, triumphs, trump's, trumps, turnbaugh, turnbough, turnips, turnpike, turnpikes