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.
cuvettes cavettos covets caveats cavities couvades covetous gavottes gavots
cuvettes fouettes mofettes moffettes navettes fatties fetes fyttes ghettoes ghettos vetoes cavettos gavottes naivetes naiveties safeties