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.
pinnace pinnas pinnies panacea pence ponce pinas pines pounce pannes pennies pins pones pions pians peins pains panes penes punas pennis pensee peones pianos ponies pawnees peonies
pinnace menace nance nonce panacea rennase tenace
pinna pinnae pina penna pennae pinny epinaoi spinney spinny pin