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.
pisos pesos psoas poises paseos paisas pisses peises psis puses poses pases posies pusses posses pizzas peases pieces passes passus pauses piazzas piceous poesies possess pussies poussies
pisos misos sos sissy resows psoas gessoes nisus visas bassos paisas soys bises cissy lassoes sows risus sises wises sous vises cussos noises kussos paseos rises raises koussos poises peises daises seises guises pesos gneissose liaises hoises mises lassos chaises
piso pis paisa paise peise peso pias pies pious piss pois poise psoae psoai pips