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.
murrain murrine murein murine moraine morrion marrano mirin mourn marina merino morion marine marron morn moron maroon moreen
murrain terrain rain terrine carrion murrine morrion moraine marrano grainy grain curran brainy serrano brain arraign rainy reran sierran drain deraign terrane train ran rin
murra mura murr murre murrey murry