I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
marauder murder mirador murderee martyr martyry moratory moratoria mortar
marauder braider warder trader prouder murder larder readier rudder ruder rudery boarder raider forrader broader harder hoarder carder cruder grader guarder reader parader prudery treader yarder