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.
comet comte combed comate combat comade comity comedy commit comedo commata commode commute committee gamete gomuti cameoed coembody
comet met domed roomed remeet omit meat meet meta mete boomed emmet fumet vomit homed comte gamete loomed mammet maumet ramet remet zoomed doomed
come came cameo coma comae comb combe combo comma commie commy coomb coombe acme