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.
siameses shamuses chamises chamoises chamisas chamisos chemises shmoozes
emeses tmeses siameses mimeses nemeses shamuses chamises emesis tumesces bemuses semises nemesis koumyses messes gummoses momuses camises mezes mises muses amuses wamuses humuses mesas chemises phimoses wammuses tmesis demoses camases tamises zymases whimseys hummuses demises mimesis remises vamoses hommoses kumyses koumises zymoses