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.
smalt smalti smalto smelt smolt samlet simulate smiled smelled symboled symbolled
malt smalt smolt smelt smalto smalti samlet remelt gimlet camlet hamlet boomlet molt milt melt malty tumult
small smell smelly smile smiley