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.
droller drollery driller troller droolier drawler triller derailleur drawlier trailer trawler
caroller troller droller roller reroller frillier grueller droolier derailleur caroler raillery rallier brailler broiler friller prowler growler griller crueller driller grillery quarreller drollery cruller triller kruller shriller
droll drolly drill drool drooly troll trolley trolly