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.
callouses calluses calloses galluses closes gallowses clauses cullises coleuses coulisses clozes calces galliasses galleasses calesas calices glosses calyces classes colossus glossies coalesces colessees glozes glasshouse classis culices glasses glossas glassies gallicize
louses delouses callouses blouses loses losses looses soleuses flosses pluses phalluses galluses ileuses coleuses jealousies boluses jalousies gallowses calloses glosses calluses plusses clauses xyloses closes taluses
callous callose callus gallous