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.
comous combos comose combs comes comas camos coombs kombus commas combes gombos coombes commies caeomas gummous cwms cams camas cames koumis camass camise camisa cameos koumys cammies cumbias gummose koumiss koumyss goombahs goombays
awmous comous cymous famous chymous ramous rimous gummous mus mos chemos jumbos muumuus muse rimose nimious mums mows gummose mimosa camos hummus romeos ammos moos limbos limbus mumus sambos doums shamus shamos shammos wamus umbos duomos gumbos simious hommos daimios mambos cymose cameos momus muss iambus meous moues haymows vamose homos nimbus nomos moas bimbos mimeos kombus amuse combos pomos humus bemuse mouse ramose moss memos miaous sumos moms limos amus emus comose mousy ramus emeus demos samosa dumbos ambos timeous wammus chamois gombos shamois shamoys shmoes
camo coma comae comb combe combo come comma commie commy coomb coombe