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.
calamata kalamata calamite calamity coelomata calumet climate gliomata coelomate collimate calmed claimed clammed columbite culmed
calamata kalamata lemmata coelomata gliomata celomata
calami calm clam claim clammy kalam