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.
pomace pomes pumice pommies poms pimas poems pomos pumas
mace pomace maes maze mice amaze amice emcee pumice smaze zymase
pom pima poem pome pommee pommie pommy pomo puma ipomoea