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.
drys drays derays dors doers duras trays duros dries druse troys doors dures draws dress durrs treys dross drees dorsa dears deers dorrs dares derris dressy drowse dories durras deairs hydros drowsy drossy douras duress hydras dourahs diaries dowries hydrous derries dearies durries hydrase daresay dairies tors tres tars torse trues tarsi trees tores trass torso tears torrs toras trows torus tyres tress truss tahrs torsi trois tiros tares toros tours tries tires tiers trews trios terse taros tyros