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.
villain villainy villein violin valine violone flan fallen feline valonia
villain lain zillion ralline pillion mullein milline llano billion blain bullion elain villainy villein hellion jillion callan cullion gallein lallan million mullion plain slain delaine lin
villa villae vill villi viola voila evilly