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.
tain tin tan tiny tine tauon tawny tinea tinny taenia tawney tannoy ton tun ten dan din taeniae dino tone dawn teen tony tune tuna toon town dean dine tyne danio deign diene teeny tenia toney tonne towny tunny
ain fain vain cain gain kain lain main pain rain sain tain wain chain an in