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.
skew soke sike syke skee sake skiey sickee sickie sky ska suk ski seg sec scow souk sook suck sick skua saki soak seek sego sock sack sika segue sicko socko squaw sucky