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.
trooz torso trois tiros toros tyros trios troys trows taros triose torose torous terrazzo tars tors tres trousseau
trooz broos froze croze karoos karroos proso
taro tiro toro trio trow troy tyro rooter rootier rotor strow stroy tooter