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.
teen teeny ten tenia townee taenia teniae ton den tin tun tan taeniae deny tuna town tain tiny tone tony toon dean tune tyne deni dene tine toney donee towny tauon tinny tinea tawny diene deign tunny tonne
been keen queen peen seen teen ween wheen sheen en