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.
dioicous docs decos dicks docks decoys dickeys dickies digs dogs doux tics dugs tacos tikis ticks dagos dukes ducks dikes decks dagoes decays dekkos togues toques
dioicous ficoes ficus fucous vacuous mucous nocuous raucous scouse sickos chicos cos