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.
creosol cresol cresyl crossly carousal curiously carcel crusily crissal crassly grossly carousel coarsely crousely greasily carrousel grisly coryzal crazily
creosol resole aerosol girosol cresol hydrosol
cares cries acres cures crows crouse crosse cross crews caress cressy cress creese creasy crease cores across