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.
commuter combater cometary commodore
commuter muter dimeter smiter scimiter remoter ohmmeter limiter geometer vomiter emoter biometer ammeter mutter miter meter mater diameter yawmeter
commute commata commit committee commode