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.
duelist duellist delist dualist dialist dullest diallist dulcet teleost deloused dualized tallest
relist delist duelist list ruliest alist oiliest mealiest coaliest jowliest vealiest hilliest sciolist violist diallist heliast palliest holist bulliest wiliest woolliest chilliest shelliest holiest fliest roiliest silliest ballista niellist paliest pollist realist phallist jolliest cellist poloist soloist lowliest eeliest sliest dialist dualist duellist wooliest chiliast shaliest shoaliest
delis dellies dualize duellos duels dulias