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.
sauce saucy saice syce sice sues sycee souse seis saws sous says sees seas sass cess cees suss size sews
sauce ace duce deuce saucy juice cause gauze lace lacey luce pace face pacey pause peace puce race saice mace dace douce tace