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.
disseat dissed deist dissuade tasset disced dossed tissued daisied dust dost doest dusty dosed diced doughiest deceit dacite doused dowsed diacid decide deiced tossed dayside decidua deicide dizzied
misseat disseat seat cassata nauseate asset basset bassett fissate fossate caseate reseat cosset gusset miseat misset knesset posset roseate russety russet tasset sat set