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.
aguish
cuish voguish squish aguish roguish gushy gush cushy cockish quackish mawkish buckish peckish bookish squash biggish squishy doggish weakish hawkish squush haggish loggish rikisha puggish peakish hickish quash hoggish piggish puckish boggish gawkish rakish sickish jiggish waggish woggish