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.
wadi wad waddie wait woad wade wady waddy woodie widdie wed wud wat wit whit wide whid what wood watt wite weed wheat white whity widdy widow witty woody wooed weedy
cadi gadi kadi qadi padi sadi wadi ad