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.
besoms bosoms beseems bazooms
besoms bosoms soms chiasms chasms deisms sims somas sums zooms bazooms isms gismos miasms possums seisms jisms dismes cosmos chiasmas miasmas chiasmus