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.
heckled hackled haggled higgled hooklet
buckled cackled pickled tackled keckled chuckled ruckled knuckled cockled sickled mackled nickled heckled shackled hackled tickled suckled clued coled nickeled cycled scaled sicklied cuckold loculed macled maculed