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.
scissor scissure seisor sissier seiser seizor seisure saucier sassier suasory sizar sizer cicero saucer seizer sizier seizure
scissor visor voussoir hisser kisser lassoer lessor pisser pissoir seisor tussor tussore
cissy sissy cuisses cissies sises sisses sissies cis sis