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.
cords creds cards cruds curds corridas corrades corodies corrodes gourds crowds creeds crudes courts cairds corrodies gourdes cardias courtesy cowrites crowdies carts grads grids crits courteous grades gradus crates curets carets korats cruets cartes greeds guards grides credos carats curtsy carates curites curtsey carrots curates caritas creates curtesy croutes curettes queridas
fiords chords fords cords lords sords words rads herds lairds broads girds jerids borts forts hybrids burds byroads arrowwoods orts fards grads toroids chards boards hydrids jerrids cairds hoards hairdos farads weirdos yards shrouds shorts shards choroids nurds worts whorts surds roods curds urds sards triodes crowds prods rids creds rodes nards aroids periods gourdes pards viroids erodes sarodes grids hards hordes weirds morts liards merdes hurds rods cruds bards lards ports murids beards nerds reds guards irids sarods ordos corrodes droids bardes perdus gourds roads cards brads parodos sciurids broods purdas hydroids sorts torts turds wards birds chorioids shairds sherds shreds yairds yirds
cord corrida cocreate curd cruddy credo cred cowrote cowrite court corrody corrode corrade card corody cored cardio cardiae cardia crud crude curdy scored