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.
ladron ladrone latrine
hadron ladron durion drown drone diuron darn ladrone durn modern matron neutron padrone patron readorn citron strown diatron madrone trone trona madrono adorn biotron gadroon godroon quadroon madrona turion midiron natron outthrown padroni patroon cedarn sadiron deuteron waitron
ladder lader latria lauder leader leadier loader bladder bladdery blader gladder gladier