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.
miasms miasmas misaims meseems museums mazumas
miasms chasms chiasms jisms seams dismes sims soms sums besoms isms bosoms deisms gismos cosmos misaims nizams possums seisms chiasmus