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.
argali argal argala argle argol airglow arugola arugula auricle auricula
argali regal regale regalia reguli rugal argal argala frugal neuroglia seraglio tergal warragal warrigal