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.
sutures stoures stours sutras stares steres strews stores stress sautoires suiters stories storeys stereos suitors souters satires stirs sudaries stars sautoirs strows sitars strass stairs straws satyrs steers stroys strays sudors satoris seaters setters sataras siddurs sitters citreous satirise satirize hysterias seders seeders
futures matures coutures sutures features natures tres daturas quatres trues tyres tires dures retries stores strews mitres treys poetries tress satires steres stoures stress faitours stours waitress tares titres matres viatores trees hauteurs tores trews goitres nitres auteurs votress stares detours metres attires litres mattress tries retires tours duress buttress shoetrees
suture stour stoure stourie stoury sutra