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.
piste paste pst pistou postie pissed pastie poised peised piosity psst pest past post pesty pseud posit pasty posed pesto pasta poussette paused pesade peseta pieced posset pseudo passed passade paucity
piste coesite hessite testae raised kist baste stey joist site hygeist sate lysate miscite cite hoised haste moste listee geste mestee suite shiest wist waist doughiest peised visit poised whist paste dacite neist stew wrist gooiest cist liaised zoisite misty resite caste feist list moist vista hist feisty misate lucite gist maist vestee hygieist foist fissate guised postie taste heist hoist fist recite mustee mist seised leucite wristy costae wriest fossate zooiest chaste noised waste beastie vised pastie deist testee wised shist
pis paisa paise peise pias pies piso piss pois poise pips