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.
duroc dreck trock drouk daric taroc hydric turaco drogue drecky derrick turacou touraco dirk dork drag dreg drek drug torc dark trog turk
duroc roc rock auric brock frock heroic croc crock taroc trock uric
duro dour doura dourah dura dure durr durra durrie