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.
pawnees pawns panes pannes pans pones pians penes pansy pines peans pains peens paeans paeons peones ponies pianos pensee pennies panacea pinnies peonies pins puns pons pens hyponeas ponce penis peons pence peins pinas poons punas pions pennis pinnas pounce pinnace
townees pawnees weens townies tawnies tawneys donnees donees sawneys rawness ranees nowness newness nenes lowness fewness knees wanes wines
pawnee pane pawn panne spawn pan