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.
deadlier dawdler detailer diddler doodler tiddler toddler tattler
godlier loudlier cuddlier goodlier puddlier deadlier cuddler nettlier atelier paddler tallier fiddler pedalier modeler pedlery riddler peddler featlier puddler saddlery steelier boodler pedaler dallier idler yodeler peddlery diddler hotelier outlier needler pedler middler piddler huddler meddler muddler dawdler tiddler waddler coddler ladler saddler sidler stillier motlier doodler toddler wheedler yodler