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.
naivetes naiveties navettes nifties nighties naughties neophytes nights knights naughts navaids
naivetes vets devotes savates civets revotes revets navettes naiveties moffettes mofettes cuvettes covets caveats evites votes vetoes fouettes fetes rivets safeties soviets duvets