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.
crusado crusade cruzado cruised crust caroused crosshead cruset cursed crista crusty crazed crossed coursed creased cristae groused caressed creosote crest cuirassed curst corset grazed coerced cresset grassed greased grossed
crus crouse cruise cruse ecrus