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.
crickey crikey crick cracky crack cruck corky crock crake creaky carack croaky carrack carioca cark cork croc creak creek croak crook craggy quirky curacao curacoa garigue karaoke
rickey crickey bricky crikey pricky trickie tricky