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.
chaos chays chaws chase chows chias chose chais chouse chowse choosy chaise chasse choose chiaus chis choosey choughs sheas shows shoes shoos shaws chews shahs chess shays cheese cheesy choice wyches shaughs chez shes
chaos hos has shoos sheas shaws chows chias chaws hows chais whose taos naos miaows miaous hose hoys phase chase whoso chays hoes chose hays shahs haws shays hahs shoes haes shows
chao chai chaw chay chia chiao chough chow ciao achoo echo echoey choush chowchow