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.
trebly treble trueblue tribally terribly drably tribal dribbly durably trouble triable tearable terrible drabble dribble durable doorbell
trebly grubbily treble terribly durably dribbly drably marbly rebel rubbly curably crabbily horribly variably burbly bearably gorbelly