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.
gremmies grammes crummies grumes cremes grimes gouramies grammas gouramis grams gorms crimes kermes grooms creams kermis gramas crambes grumous kermess kirmess kermesse cramoisy cramboes cramoisie corms crams caroms crumbs karmas kormas
rummies crummies gremmies ramies roomies armies brumbies gouramies grammes preemies premies