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.
crosstie crossed creosote crosshead grossed cristae cresset caroused caressed curst crest crust cariosity curiosity cuirassed crista corset cursed crusty cruset coursed creased cruised crusade grassed groused grisette grist karst crazed
crosstie prostie cerussite christie
cross crosse crass cress cressy crissa crouse crows gross across