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.
chorionic chronic choring choiring charing shoring showring churring cheering chirring charring chairing shrink sharing shearing sheering shirring
chorionic boronic pharaonic veronica ironic morainic moronic neuronic hydronic tyronic chronic