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.
crissal crassly crossly carousal grisaille curiously grisly cresyl cresol crusily creosol crazily coryzal grossly carousel coarsely crousely grassily carrousel carcel gracile grizzle grizzly
crissa cris crass cress cressy cries cross crosse cruise