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.
creamy cream cram creme crambe gremmy crummy crambo crumby caramba coremia corm gram crime carom crumb grama grimy corium corymb curium gramma gramme carrom crummie gourami gremmie
creamy dreamy rammy ream army barmy bream germy cream gremmy rearm dream
care core craw crew cure acre ocrea ocreae recarry wreaker scree screw screwy