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.
amnia ammonia amnio amboina amboyna amen amin amain amine amino ammine ammino ammono
amnia amnio somoni semina ramona pneumonia noumena nomina lumina limina lamina vimina ammonia hymenia myna muni mini mina mania mana numina hypomania rumina simian zoomania