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.
courted curated curetted curded carted corded crated grouted cordite quirted cordate created curtate corroded corraded corotate carded grated credit gritted greeted crudded garoted guarded crowded quartet carotid garotted garreted garroted grottoed garrotted quartette graded grided crawdad crudity gordita gradate gridded
courted bruited carted berated borated aurated parroted ported partied rerouted marted narrated quirted serrated sortied grated deaerated garreted dirtied crated tarted curded warted rutted charted airted rated aerated cerated gyrated ferreted farted fruited orated pirated parted prated lyrated merited grouted sorted bruted garroted darted garoted derated routed hydrated curated turreted girted worrited hearted shorted
court curt croute curate curet curette curite scoured