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.
cyphered ciphered syphered sphered spheroid severed suffered
ciphered syphered sphered cyphered chaffered livered revered deferred referred laveered suffered overed fevered shepherd beavered buffered hoovered reoffered refereed offered louvered wafered severed afeared coffered niffered covered differed averred levered quivered quavered chauffeured liveried wavered gauffered feared hovered havered veered goffered shivered