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.
mislay misally missal missel mizzly mislie measly mazily masala muzzily messily mousily missile micella mesally mussily mausolea micellae measle micell mizzle muesli mussel micelle mycelia
slay mislay sly wisely tesla queasily rosily gassily pussley cosily piously fussily nosily easily mussily lousily busily loosely basely bossily asyla weasely sassily pussly pusley paisley mousily noisily bassly messily masala slaw sola measly cheesily
mis mise miso miss missay missy amis amiss