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.
boodler bottler butler battler beetler butlery
boodler doodler yodler loudlier tooler pedler peddler muddler middler paddler puddlier toiler footler toller huddler deadlier sidler idler coddler toddler waddler yodeler piddler fiddler pedlery goodlier peddlery pedaler modeler cuddler needler riddler ladler godlier saddler cuddlier dawdler saddlery tiddler tootler wheedler diddler meddler puddler