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.
parodos parados prods pards parodies pardahs parades periods parrots proteose parts paradise prudes prides perdus proteus produce perdues proteas parties protozoa proettes pyritous protease parietes pierrots parities prats ports priedieus pirouettes prates purdas peritus pirates purdahs pyrites
parodos rods aroids broods byroads erodes fordoes viroids broads prods redos sarodes dorados hydroids toroids weirdoes cheroots sheroots hairdos rotos credos periods rodes rodeos roads corrodes crowds parados roods ordos roots reredos sarods droids teredos uredos weirdos choroids shrouds
parodoi parody pard prod parade pardah pardee pardi pardie pardy pared parrot parroty proud sparoid