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.
bleater bloater blatter billeter bolter blader belter blotter bleeder bladder blighter blottier bladdery balloter balladeer balder bolder boulder bowlder builder balladry bloodier bouldery
bleater pleater blatter elater falter flatter fleeter floater bloater floatier coleader halter kelter muleteer pelter later relater salter slatier zoolater welter gleetier plater billeter gauleiter platter belter pleader platier plaiter palter alter gloater melter clatter violater latter leader letter realter reletter slater sleetier dilater shelter
bleat blat blet balata blate bloat bluet bolete boleti ablate oblate