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.
hyphenless phenols phenyls veinless finless venules veinules fennels finales venulose venulous
hyphenless innless seniles reinless penniless moonless painless maneless hymnless lineless manless kinless gunless townless downless unless sunless winless sinless gainless henleys moneyless sonless sinewless runless rainless nounless paneless boneless boonless awnless finless veinless venules tuneless toneless wineless zoneless chinless