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.
trauma tarama tram tryma drama diorama yttrium teraohm trumeau dram term trim drum derma diram dream durum dreamy tearoom
trauma rumba arum brahma caramba grama gramma karma larum diorama drama tarama
terai tora torah tray true straw strawy stray tauter