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.
sleight slight sleighed sealift sloughed solved sulfid slaved salved selfed sluffed sylphid sleaved sleeved sulfate solvate salvoed sulfide sulfite sulphid sylvite
sleight light alight flight flighty lowlight plight relight slight daylight delight taillight