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.
crazies crazes curacies crises grazes crasis crases crozes cruises creases carices grazioso cuirasses cruses curses carses krises cruces corses graces crisis coriaceous crosses grasses coerces creeses coryzas courses greases cresses graecize gracious gracioso griseous caresses carouses curassows carassows gorses grosze grecize grosses grouses kerseys
crazies raises razees razes razzes braises braizes brazes fraises frizzies crazes curacies grazes piracies praises reraises