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.
zoeal zeal seal sal cel sel sol sloe zill soil soul sale soli seel ceil sail sola sall solo sell cell saul sole
zoeal goal shoal wheal teal foal seal peal noel mealy meal leal koel koala coaly feal coala coal joual heal vealy veal olea real zeal deal weal sheal shoaly
zoea zoeae zoeas zoa zooey toeas