Phillips' rhymes with:
philipps, philips', phillip's, phillipps, phillips, billips, philipps, philips', phillip's, phillipps, phillips
Phillips' 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's, pilevsky, plavsic, plavsic's, playback, playbook, playboy's, playoffs, polivka, polyphase, polyps, pullback, pullbacks