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.
phoresy fores phrase pharos foresaw foresee pharisee gharries pharaohs gheraoes frees fares froes fries feres fires force fours vires forays frowsy furies varies vireos faeries fairies ferries gharris veeries
phoresy ores shores fores bores boreas lories mores lores moires sores dories tores tressy choreas heresy horsey cores chores creasy resay cressy gores gorsy greasy horsy pores daresay dressy tories whores yores res ors