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.
guarani guarana garni gran grannie grain grana groan granny crania carnie curran garron gurney grainy greenie curn grin carn karn carny green quern groin cairn crane grown greeny cairny carina groyne careen cranny krooni carney carinae carrion
guarani rani biriani carnie crania garni guarana parian saran urania ran