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.
silvery silver slavery salver slaver sliver solver salivary salvor sulfury sleigher sulphury sloughier sulfur sulphur
silvery laver shelver delver deliver sliver slaver silver rollover plover liver livery lover allover boilover elver calvary claver clever clover clovery culver glover palaver pullover salver lever slavery solver delivery wolver shelvier
salve silva silvae slave slavey solve