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.
toro tor torr taro tora tory tyro troy tore trow tour tori tiro torii torah dor try tar dorr dour tear door tyre duro trey dore tray true tier doer dory tare tire trio tahr tree doura dowry hydro tarre tarry teary terai terra terry