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.
comte comate commute comet comedy commit comity comedo combat comade combed committee commata commode gamete gomuti cameoed gummite coembody
comte boehmite mammate gummite comet boomed mite mote gemote motte motey mute somite smite symbiote roommate demote remote doomed ramate mete emote hamate loomed gamete comate commute humate homed gemmate vomit fomite mate smote samite summate roomed zoomed remate domed omit teammate
coma comae comb combe combo come comma commie commy coomb coombe