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.
ten teen tenia teeny taenia tun tin tan den teniae ton taeniae tuna deny dene tine tony dean tone toon town tain tyne tiny tune deni tunny tinny towny tinea tawny diene tauon deign tonne toney duenna tannoy tawney toonie townee townie