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.
wrist wriest wristy wrest risotto rest rust reest roset roust resat rusty roost resit reset roast recit recite resite reseat raised russet raucity roseate rosette russety reissued
wrist feist wristy wriest rust piste mist moist kist list gooiest joist hygieist hygeist whist doughiest shiest zooiest hoist feisty maist deist cist gist wrest rest misty neist hist fist foist visit vista heist wist waist shist
rais raise warsaw sris priss kris reis reissue rias rise wrasse wries arise bris briss frise frisee iris cris crissa prise prissy wars worse