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.
cresset crest caressed cruset corset creased crossed crust crosstie curst creosote crosshead cuirassed crusty crista cursed cruised grossed greased goriest coursed grassed grisette caroused queerest karst grist curiosity cariosity crazed coerced cristae crusade crusado groused querist
cresset reseat reset russet russety verset caressed preset pressed dressed tressed
cressy cress cares caress cores crass crease creasy creese crews cries crissa cross crosse cures acres