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.
sickee sickie sick sike skee sicko sic sika sake seek suck soke sack sock skew syke segue skiey socko sucky sac sec seg ska ski sky suk
ackee sickee chickee hackee tackey hickey wacke hockey duckie jockey dickey rakee sickie akee hackie hickie dickie cuke keek quickie lackey luckie mickey rickey coke skee cake