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.
poetries potteries peters pitiers petrous pewters petters pouters powders powters potters puttiers padres paters padders patters putters pedros
poetries tries retries tres trice batteries treys buttress feudaries booteries cauteries dries potteries trios nutrias nitres tress retires puttiers feodaries viatores trues yttrias metres trews votress gauderies waitress tetris stares dietaries zedoaries rotaries sudaries stress stores natures tares satires matres features cottiers dowries litres quatres derries matures diaries butteries trois dearies tarries votaries eateries futures trees mitres tores redries dories dairies durries bawdries pitiers attires niteries tyres mattress tires lotteries terries metiers coutures goitres tories catteries notaries latrias satoris tiers stories coteries strews sutures ruderies dataries tawdries steres titres shoetrees