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.
sound sonde sunned sundew sundae sand sned send saunaed zoned sandy snood snout snide saned suint synod scend sonata signed sinned seined snouty sained sonnet zooned sent snit snot
found bound sound wound mound hound round pound monde coned honda count bund mount bond mondo phoned zoned poind tondi honed maundy gonad undo toned sonde fund monad rondo neoned fount undy fundi maund fondu tondo unde boned condo fond zooned mooned pond tuned yond
sun son sauna sone sonny soon sown sunn sunna sunnah sunny