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.
dreamy dream dram diram dormy drama diorama dorm derm drum tram derma durum dormie tarama trauma dayroom tearoom teraohm trumeau
creamy dreamy rammy ream army barmy bream germy cream gremmy rearm dream
dare dire readier dear dearie deary deray dere deair draw dore dray dree drew dura dure reader deader