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.
guarana guarani grana gran garni grain groan garron gurney carina crania grainy granny curran grannie carinae grin carn karn curn grown cairn green carny groin krona crane quern cairny carney careen corona carnie groyne greeny koruna cranny carrion coronae greenie
guarana carina saran pirana parian marina guarani grana ruana crania jarina hariana varna fraena farina arena purana urania ran