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.
seemly smelly small smell sambal samiel smiley symbol cembali cembalo sawmill
seemly mealy chimley wambly tamely doomily smelly rumbly numbly namely lamely beamily family foamily haemal hammily moly homely nimbly chimbly timely dumbly dimly hemal roomily mumbly hiemal gamily gamely comely gemmily humbly homily chummily