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.
comate comte comade combat commata commute comet commit committee comedo comity comedy combed commode gamete gomuti cameoed gambade gummata gummite coembody
mate ramate teammate remate roommate gemmate summate hamate mammate comate humate mat somite maut moat gemote mete made numbat gummata smote bemata matey commata meat smite somata fomite mite wombat mote demote mute gummite combat emote comade matte mammati matt pomade remote boehmite lemmata remade samite commute comte gamete tomato limbate chamade
coma comae comb combe combo come comma commie commy coomb coombe