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.
huger hedger hedgier headgear hedgerow hegira hejira
auger gauger huger mauger luger gouger sauger codger badger ledger budger lodger eager cadger nudger sedgier ager dogear edgier judger cagier booger leger laager liger podgier cager wedgier dodgery wager jager meager hedgier lager pudgier sagier hedger gager eger pager sager dodgier tiger gear edger jaeger logier ledgier ridgier roger headgear regear dodger yager