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.
deedy deed died teed didy dead deet daddy dowdy teddy deity toddy duddy doody did ted dud dad duty tody duet tied tide date dite dada tidy duad dote dude doty dodo diet dido dado toed
needy reedy weedy seedy deedy queued weed reed teddy cooeed need deed eddy kneed seed ready neddy peed feed beady jeed beedi geed heed heady meed feued teed leady
deedy deed dee weed died need dead seedy seed reedy reed needy peed geed heed feed beedi deet meed teed jeed weedy