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.
dawdler deadlier diddler doodler tiddler toddler detailer tattler tootler
dawdler goodlier riddler puddler pedlery pedaler peddlery muddler modeler middler needler meddler loudlier tiddler diddler waddler fiddler yodeler saddlery ladler godlier paddler sidler saddler puddlier piddler peddler pedler huddler idler boodler coddler cuddler cuddlier toddler doodler wheedler deadlier yodler