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.
collimate climate coelomate coelomata columbite claimed climbed gliomata calamite calamata calmed culmed glimed calumet clammed calamity kalamata guillemet guillemot
climate collimate limbate coelomate palmate plumate cellmate soulmate