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.
sews sues sees saws sows seas seis seise seesaw sos sis sice syce sous sass size cess says soys suss cease cissy saice sassy sauce seize sissy souse sycee
views hews jews mews news pews sews dews tews whews chews shews yews es