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.
tire dire trey tore tyre tier true tare tree tiro tarre terrae tor try tar torr dore taro trow dare dere tray drew tori tora tory toro tahr tour dure tyro troy tear trio dree deair terry dairy torah torii tarry teary terai terra diary
fire hire ire quire lire mire moire cire sire zaire dire tire wire shire re