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.
sild siloed soiled sailed sled sold silt slid sloid slide soldo slued soldi sloyd silty salad soled solid soloed souled solidi ceiled seeled sealed sallied ceilidh sullied slat slut salt slit slot salty sault slate slaty sleet
build gild guild mild sild wild child