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