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.
glueyness gluiness glens gluons gleans cleanness galenas galleons guylines galleins coolness glans clines clones cleans callowness cleanse colones gallons colleens colonies galloons kaolines clans clons kilns
glueyness alienness blueness vileness haleness maleness paleness slyness soleness sullenness dailyness wholeness