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.
violist vilest volost vealiest villosity fliest foulest phallist fellest fullest
violist holist sciolist list vealiest fliest eeliest bulliest ballista alist lowliest hilliest coaliest palliest molest relist phallist sliest delist diallist duelist wiliest woolliest chilliest shelliest oiliest poloist heliast niellist holiest paliest jolliest pollist jowliest realist coolest cellist mealiest roiliest ruliest volost silliest soloist dialist dualist duellist wooliest chiliast shaliest shoaliest