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.
radome radium redeem reteam retime
radome dome dom dame deme dime doom doum tome idiom madame sodom sodomy shahdom
rad radii trad orad radio raid rato read readd ready redo road roadeo roadie brad irade grad grade ordo trade