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.
crossed crosshead grossed caroused caressed crosstie cursed cuirassed cruised coursed groused creased cresset grassed creosote cruset crazed corset coerced greased crusade cristae curst crest curiosity cariosity crust crista crusty graced grazed crusado cruzado
grossed crossed trussed drowsed rearoused prissed groused grassed cuirassed caroused caressed horsed browsed harassed brassed aroused roused rosed roosed reissued pressed prosed dressed tressed chorussed
cross crosse crass cress cressy crissa crouse crows gross across