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.
bleeder blader bolder balder boulder builder bleater bladder bowlder billeter bladdery bouldery bloodier balladeer belter bolter blatter bloater blotter balladry balloter blighter blottier
bleeder leader lewder lieder elder fielder fleeter gelder coleader melder pleader sledder welder wielder shielder yielder