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.
ever every ephor
aiver heaver beaver ever laver fiver haver fever riever sever rover soever reaver paver diver newwaver waver naiver weever lover wiver lever shiver liver aver hover raver quaver cover quiver jiver giver caver reiver saver river siver over hoover suaver never waiver mover weaver louver whoever leaver shaver liever shover