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.
hoodier hootier hooter headier heder hider hitter hotter heeder header hater haughtier hatter heater hetero hauteur hetaera hetaira
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
hoodie hood hoodoo hoody howdie hod