Playoffs rhymes with:
layoffs, layoffs, payoffs, castoffs, cutoffs, drop-offs, dropoffs, hoelterhoff's, knockoffs, layoffs, payoffs, ripoffs, selloffs, spinoffs, standoffs, takeoffs, tarnoff's, tartikoff's, tartikoffs, tradeoffs
Playoffs sounds like:
palafox, pavlovic, pavlovich, pelvic, pelvis, phelps, phelps's, philbeck, philip's, philippic, philippoussis, philipps, philips, philips', philips's, phillip's, phillipps, phillips, phillips', phillips's, pilevsky, plavsic, plavsic's, playback, playbook, playboy's, polivka, polyphase, polyps, pullback, pullbacks