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