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.
corymb corm crumb corium crambe crambo crumby coremia caramba cram gorm creme korma carom crime cream carrom creamy crummy curium quorum crummie gourami
cory cor cry coir core coria corrie cowrie cowry gory score scoria scoriae scry