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.
agrafe agraffe agrapha aggrieve agraphia
carafe agrafe crave curfew grave agraffe wakerife
agar aggro agora agorae agree agria