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.
tidally tidal tidily tiddly totally diddly tautly deadly diddley dottily tattily total dotal dedal title doughtily daedal dawdle detail diddle tattle tittle toddle daddle dowdily
feudally caudally tidally nodally dally modally dilly delly retally dolly tally mutually daily coitally fatally dually medially dully radially vitally ritually ideally totally dal