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.
carom carrom caramba corm cram crumb crime karma creme groom cream crumby corymb crambe curium crambo crummy creamy corium crummie gorm gram grim grum
carom arm rom farm proem charm teraohm broom dayroom bromo barroom chromy promo brome larum harem groom from barmy chrome aroma barm carrom karma warm tearoom rearm prom neuroma harm arum army vroom roam room varoom chroma chromo showroom
car care carr carry crow karoo acari scar scare scarey scarry scary