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.
eonian aeonian
aeonian eonian banian nan venin conine venine guanin honan kinin inion leonine fanion canine manana quinina minion onion panino pinion rennin ronion zenana tannin wanion bunion quinine benign inane anion conin nine gonion nana guanine banana quinin naan gnawn linin jnana mannan munnion panini pennine renin reunion zanana dynein union hyenine