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.
medlar medullar medullary meddler modular middler modeler muddler mutular modeller motlier mottler
medlar pedlar cuddler ladler meddler medullar medullary middler coddler modular mutular puddler pedler riddler sidler stellar dawdler doodler titular toddler tutelary wheedler idler nodular dollar piddler boodler tolar talar muddler needler paddler fiddler peddler huddler pedlary patellar radular saddler stelar stylar diddler tiddler titulary tutelar waddler yodler
medley madly medal meddle medial medially medulla medullae