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.
viola viol voila villa villae vail veil vial vole vile fila vill vela voile villi folia volley fil flaw foil fill foul fowl foal vale fool filo flea file veal fail flay
viola voila diol scilla pilea pilau olea milia koala moola cola coala ilia ilea holla cholla tola hila viol moolah chola doula sola cilia pilaw olla mola aioli kola bola boyla fila folia villa sheila