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.
ordos oreads oreides oroides orts orates
hairdos weirdos ordos roadeos radios prods reredos girds birds bardes grids fordoes bards gourds wards cords words hurds hybrids hoards hards curds creds jerrids sarods yards shreds chords foredoes parados urds trots lairds tarots dorados sords brads shards cards fards liards boards perdus merdes guards parodos beards nurds cruds carrots hordes pards reds rots grots jerids pierrots rods rodeos fords redos gourdes farads quartos fiords rids herds credos lords nards rads irids cairds lards nerds murids sciurids grads hydrids burds teredos purdas uredos sards parrots surds weirds redoes chards shairds turds sherds yairds weirdoes yirds