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.
foist fist feist feisty fiesta fissate fossate fest fast fossette feast fusty ghost visit vista ghosty vast vest
hoist moist joist foist wrist waist roost dost piste cist costa roust kist post feisty fist toast shiest wist oast moste ghosty feist lost mist ghost coset hygeist joust boast deist maist heist vista zooiest tost wriest doest roast wristy oust roset cost posit list gooiest wost doughiest whist neist most boost hist misty host coast visit hygieist gist hosta shist
foci foes foss fossa fossae fosse foys