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.
dressy dress tressy drossy duress daresay dries dares drees dures dross tress dories drowsy dairies diaries derries dowries durries dearies dors tres drys trews drays trees tries doers duros truss tares deers dears doors durrs treys tires trass duras dorrs tyres tores dorsa trues druse draws deairs tories derays derris drowse hydras hydros douras durras tarres dourahs hydrase hydrous tarries terries
cressy dressy tressy grassy press tress drossy daresay greasy dress seeress prissy peeress phoresy cress duress brassy creasy resay caress heresy heiress morassy
dare dere dire dore dree drew dure