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.
pizzas piazzas pizzaz pizzazz pizzazzy paisas pizazz pizazzy psis paces pisos pases psoas peases poises peises paseos peaces passus pazazz pisses pauses posies passes pieces piceous poesies pussies poaceous poussies
huzzas pizzas piazzas tazzas zas jazzes whizzes lezzes razzes cozzes fuzzes mezzos fezzes huzzahs mezuza buzzes bizzes baizas pizzaz quizzes fizzes wizzes