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.
parotid parotoid proteid partied proteide parodied parroted parted partita partite prettied periodid prated ported prided prutot pirouetted paraded peridot pirated prodded predate preedit
carotid parotid garoted garroted parotoid parroted partied proteid sortied dirtied
part parity parodoi parody parrot parroty party peart proette protea protei apart sparoid