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.
deodar deodara deader detour deedier dietary doter deter dater dotier tedder dieter dotter dodder datura datary tidier doddery dottier dowdier daughter
deodar odor cheddary chadar zedoary sudary cedary cedar redear radar midair dare lidar gaydar coder feudary feodary dear deodara cheddar chuddar
dead deed deedy died diode dodo doodoo doody dowdy deeded doodad