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.
continua continue continuo contain cantina condign conidian canteen condone kinetin quintin quintain canton
continua fontina cantina continue continuo sonatina
conidia conoid conte conto coontie count county aconite