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.
marron maroon marrano morrion moron marina marine morion murrine murrain morn mirin mourn merino moreen murein murine moraine
garron marron perron durion trone sierran drone baron prone heroin virion crown irone irony hereon chirren giron crony corona groin iron roan moron neuron hyperon gyron krona warren barren grown frown brown pereon groan krone heron curran barony carrion crone croon kroon boron maroon morion morrion neurone prion pyrone diuron drown trona turion whereon chorion
marrow marrowy marry mar merry murry maar mair mara mare maria morro murr murra murre murrey morrow myrrh