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.
tahr tar tare taro tear torah teary tarre tarry try tor tree toro trow tier tyre tori dare tray tory true tiro tora trey tore tour tyro troy tire trio dear torr torii deary diary hydro terai deair terry terra dairy