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.
jinni jinn jin jinnee johnnie join ginny jenny johnny gin jun gien jane jean jeon john
jinni inn whinny zinnia pinna penni nannie mini benni biennia bonnie ennui finny heinie hinny inia ginny jinn johnnie cannie linn meinie minny ninny pennia pinny tinny shinny