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.
contuse conatus contos counts cantus contes conduce counties cants coonties connotes contessa cunts countess cantos condos condoes conoids canities canids gonads kentes qanats quants quints candies gannets gunites kainits quintas quintes
contuse cantus conatus manitus mantuas pentose tinnitus chanteuse
conte conto coontie count county