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.
commuted committed commutate combated combatted commodity coembodied
commuted muted mated meted emoted vomited gemmated limited remated smutted summated summited demoted
commute commata commit committee commode