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.
perdus perdues periods peritus prods pards purdas priedieus produce purdahs parodos proteus parados pardahs yperites pierrots pyritous ports parts prats prates prides prudes parties pyrites parrots proteas pirates parades parities parodies pretties proettes protease proteose purities parietes
perdus sarods chords sardius creds bardes rods girds jerrids rads guards gradus lards radius hards fords murids lords virtus reds gourds weirdos yards shards words perdues fards prods ruts shreds nerds hoards rids sords cards hydrids curds urds ordos hurds sards grids liards merdes fiords hairdos birds lairds grads beards hybrids jerids irids bruts boards cords purdas chards vertus gourdes hordes herds nurds turds cruds surds cairds sciurids burds nards wards sherds brads bards farads pards weirds shairds yairds yirds
perdie perdu perdue perdy pert operate periti purdah period prude peridia pride peered pard peart pardah pierrot pardy prod pardie purda pardi yperite pardee operetta