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.
dune dun dene tune done dyne dine donee diene donne donnee duenna din tun den don dan tuna dawn dino deni deny tone dean tine dona down tyne danio deign donna downy tauon tinea toney tonne tunny
kune lune rune dune tune ne un