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.
amulet ambulette ambulate ambled amyloid
amulet mullet tumult rambouillet omelet camlet gimlet hamlet boomlet bomblet muleta mallet muled moult millet miauled mauled samlet umbellet