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.
genoise genies genius genoas gens genes genus jennies gins hygienes ginzo jeans joins jinnis
genoise noise nose nisei noisy noose nosey anise venose ionise lanose lionise mannose hyponoias unnoisy nos