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.
condor candor candour contour coendure cantor contra cointer counter country cointreau canter gander kinder qindar quandary
vendor condor candor tundra undoer daunder tender sunder zander sander sonder pounder rounder pandore pinder minder pandoor maunder fender chantor winder indri laundry lander candour kinder finder fonder mender joinder hander vender funder foundry founder hounder bounder indoor binder launder meander bander gender gander qindar hinder cantor bonder andro bandora bandore bender mentor pander lender sundry wonder wander under tinder tandoor dander sounder ender sender cinder render ponder pandour pandora yonder
condo connate aconite cnida cnidae coined coned conidia candy connote conned conoid conte conto coontie count county cognate