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.
facet facete faucet faced fast fest feist feast fazed feazed feisty feased fissate fossate fossette phaseout fist vast vest
tacet facet cete aced aceta faced facete faucet laced maced nicety paced peaced raced deceit tacit