Masters' rhymes with:
headmasters, lemasters, master's, masters, mcmasters, asters, astor's, casters, disasters, headmasters, lemasters, master's, masters, mcmasters, pastor's, pastors, pilasters, plasters
Masters' sounds like:
master's, masters, masterwork, masterworks, mastrich, mastrich's, mcdaris, mckitrick, mckittrick, mcwaters, mcwatters, megastores, meisters, mesothorax, minister's, ministers, ministers', ministries, ministry's, minstar's, misters, mistress, mistresses, mixtures, monasteries, monsters, monstrous, moonstruck, mostar's, musketeers, musters, mysteries, mysterious