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.
commit comity committee commata commute comet comte combat comate gummite commode combed comedo comedy gambit gomuti comade gummata coembody gammadia
commit dammit summit demit vomit mite emmet reemit mammet mitt mity ambit amity boehmite emit samite smite vomito comity gambit gummite limit omit remit smit fomite somite dimity
commie comma commy cammie coma comae comb combe combo come coomb coombe