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.
airs ars ares arse arose auris arras aures arris auras areas arias arise ariose ariosi arioso arouse arrays arrows aureus aurous
airs lairs chairs weirs deairs sirs pairs noirs mirs mairs kirs fairs keirs coirs heirs hairs vairs firs wairs whirs choirs