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.
gismos gizmos jisms
cosmos gismos chiasms chasms deisms racemous possums osmose miasmas jisms gizmos isms bosoms besoms sumos sums soms sims samosa sambos cymous cymose miasms osmous racemose seisms dismes chiasmas chiasmus