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.
teammate teamed tomatoey tamed dammed dammit teemed tomato tommed deemed demode demoed dimmed
mammate gemmate teammate roommate summate mate commata matey matte hamate humate comate ramate gummata limbate mammati remate commute gummite lemmata mat
team tammie tammy steam steamy stemma stemmy tam