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.
drift drifty draft drafty draftee derivate trifid trivet derived draught drought draughty droughty tariffed terrified torrified
rift grift drift shrift raft reft bereft craft croft graft kraft draft drifty
derive draff draffy dreigh driegh drive