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.
louring luring lairing leering
curing touring during pouring luring souring louring muring ring tearing heiring firing fairing bearing hiring coring soring boring earring ruing goring poring oaring furring lairing tiring tarring airing jarring syringa mooring eringo raring roaring showring shirring shearing churring choiring cheering charing wiring whirring warring wairing truing gringo purring tiering rearing garring parring curring seringa searing daring faring ourang miring veering sering peering haring quiring caring paring burring wring leering nearing deairing herring baring gearing gyring gnarring siring gringa erring birring cering soaring iring fearing tyring barring bring zeroing marring hearing jeering queering taring earing pairing waring trueing wearing whoring chairing charring chirring choring sharing sheering shoring yirring