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.
tauon ton tan tun tone town tune tain tony toon toney tunny tonne towny tawny toonie townee tawney townie tannoy taenia dan don ten tin tonneau dun taeniae dawn tine dune tuna teen dean dona done tiny down tyne
tauon aeon faun fauna gaun kaon quoin lauan maun muon paeon sauna