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.
panne pane penne pan pinnae pennae pawnee pian pean pine pone pawn pain pinna penna pinny punny penni paeon piano paean penny piney pennia pen hyponea pun pin poon pein puna peen peon pony pion piny pina puny
panne ane johnnie cane canna canny gane kane jinnee liane manna pane nine vane none pennae pinnae sane donnee wane chaine shanny nannie fanny jane lane anew bonnie bonne benne beanie bane nanny anna cannie goanna canoe mane meanie fane penne ranee donne tonne waney choanae shinney