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.
nuns nouns nans naans nones noons nines neons nenes nanas nonas nuncio nonuse nuance knowns nannies newness ninnies nonnews nowness nance nancy nonce
buns fauns funs huns guns muns nouns nuns puns runs suns duns tuns uns shuns