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.
deceits deists dacites decides deciduas deicides deciduous diacids disseats dusts tests testes testis tsades tassets testees
deceits hygeists feists cists recits recites miscites lucites leucites hygieists heists cetes cedis faucets fascitis facets ascites cites resits dacites deists
deceit decide decidua deciduae deiced deicide deuced deediest