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.
seme seam seem semi smew some same seamy sum sim som cyme sima soma sumo zyme samba sambo summa
eme feme heme meme seme deme me em