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.
prez pries price perse prase press prise prose pores peres pyres prize pares purse parse prees preys prese presa purees pursue paries pareus praise pierce porose pareos peruse pricey peeress perries peeries parries prossie pros pars purs pross praos prays paras peris puris priss prows proas proso pricy pours piers prosy pears pairs peers purrs paris parrs pursy praus pyros