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.
juicer juicier jazzier jazzer
voicer juicer nicer choicer deicer ricer chicer dicer cere woozier noisier hissier vizier piecer gauzier riser lazier mossier sizer oozier cosier lacier easier viscera saucier mussier mazier fizzier hosiery racier dozier dossier dicier saucer jazzier whizzier kaiser queazier cozier pussier rosier lousier messier newsier massier cheesier bossier icier goosier cero seizer seiser juicier osier cicero boozier sizier hazier zooier pacer sieur hosier sassier queasier wussier lacer fuzzier gassier fussier sissier mousier muzzier facer busier macer miser pacier wiser poiser racer raiser fozier dizzier douceur wheezier nosier choosier