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.
duet deet daut duit dude diet duty deity dought duddie dautie dud dit tut tet dot doughty data tide duad dote dawt taut dite dead doit dita date doty teat tout tutu doat dato died deed ditto diode didie tutee datto deedy dotty ditty duddy tutty tutti