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.
pleon pelon plena pylon poleyn pollen pillion plan plain plane paulownia paulin pollinia
galleon pleon billon loin gallon clown lone bouillon glean clon flown colon coloni pollen gluon cullion gallein eloin felon halon pillion villein mullion chalone salon woolen talion lien xylene solon sileni olein lion melon relleno belon mullein lown loan leone lean clone leno alone bullion galena colone felony hellion pylon colony clean violone loon jillion blown plena galloon billion nylon fallen phylon colleen alien aloin glen mullen poleyn baleen million reloan ballon pelon solion balloon sullen zillion melena talon woollen saloon shalloon
pale palea paleae pele pile pilea pilei plea plew plie plow ploy pole polo pule people