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.
quirted courted curated quartet curetted quartette crated grated carted curded garoted gritted guarded curtate greeted created grouted grottoed garreted garotted garroted garrotted corded graded carded grided credit cordate cordite crowded crudded crudity gradate gridded
airted girted quirted farted ferreted variated aerated fritted hearted merited lyrated bruited courted gyrated narrated grated bruted parroted partied ported cerated serrated sortied deaerated dirtied tarted warted worrited charted fruited borated curated marted hydrated turreted darted derated seriated sorted pirated prated orated parted aurated garroted charioted weirded muriated berated lariated garreted birded garoted gritted crated carted rated girded rioted shorted
quirt quart quarte quarto quired squired squirt