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.
reflows refels refalls refeels refiles refills reflies refuels ravels rifles revels riffles raffles reviles reveals ruffles reavails revalues rivulose roofless reveilles rivals
flows reflows fallows fellows filos flaws flews floes floss follows fowls beefalos buffalos peafowls seafowls
reflow refall refel refell refile refill reflew refly trefoil