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.
phytin phyton phytane photon phaeton
phytin tin biotin attain tiny tine tain mutine phyton ratine patine retain retine routine cyton satiny stein detain patin cutin gittin patina latino lattin lutein matin mattin mutiny latina poutine reattain retina rhyton rutin satin stain zeatin chitin