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.
tun tune tuna tunny tauon dun tin tan ten ton town tiny dune tine tain teen tone tyne toon tony tinea towny teeny tonne tawny toney tinny tenia taenia tannoy tawney teniae toonie townee townie duenna