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.
severed savored sievert sphered savoured severity suffered syphered ciphered cyphered safaried spheroid
beavered louvered covered quavered overed fevered havered revered shivered livered hoovered severed hovered wavered quivered levered niffered louvred feared savored veered sphered syphered buffered reoffered overdo differed laveered chauffeured leveret refereed offered afeared averred chaffered ciphered deferred cyphered referred gauffered liveried goffered suffered coffered wafered favored
sever severe saver siver soever