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.
shmuck chemic chymic
muck amuck shmuck mack mick mock mucky bemock hammock hommock hummock gimmick jumbuck mammock smack smock
sham shame shammy shamoy shim shimmy shmo schmo schmoe