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.
moodier mooter muddier miter motor madder mudder midair matier metier mitier madeira moidore meatier mater mitre madre meter metre mudra muter matter meeter meteor mutter mattery
hoodier woodier moodier hootier footier fodder faddier beadier odder needier rootier sootier readier deedier dotier tidier giddier headier coder shadier ruddier muddier voider gaudier reedier bawdier powder loader louder codder loiter leadier goiter chowder nodder rowdier seedier zootier dodder dowdier weedier shoddier