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.
craw crow crew curia coria curiae cor cry car cru cur carr kora curr grew cure gray core coir care grow cory carry cooer cowry curie curio curry korai