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.
vireo vair vrow vier fire vrouw feirie var fir fro vary faro frae frow fare vera veer fore froe fair free fere fiar vara very
vireo ire chirre wire tire zaire siree biro feirie fire hire hiree giro quire guiro lire mire moire pareo cire sire soiree dire tiro chiro shire