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.
karma korma caramba carom grama carrom gramma corm cram gorm gram grim grum
karma arm charm tryma tarama diorama rearm neuroma korma grama carom caramba hermai hermae herma harem farm harm brahma barmy barm arum aroma gramma army larum prima derma drama trauma warm chroma