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.
keyset kist quest coset guest cosset cuesta gusset kissed casette coesite gaseity gooiest guessed caseate cassette quayside
keyset set disseat xyst cyst russet reset posset knesset misseat mayst lysed gusset cosset coset physed bassett beset basset asset suet sett seta seat miseat misset peseta reseat roset russety sayst xysti tasset
keys kaes kays keas kues ekes kegs okes ukes