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.
crambo crambe cram caramba cream crumb crumby creamy corymb gram corm carom crime grama creme carrom corium crummy curium gramma gramme coremia crummie gourami
crambo caramba crambe paramo choriamb