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.
mail maile maill mil mall moil maul mill meal milo mile male mille mealy milia miaul mealie milieu mallee mallei mallow mol mel mouille mull mule mell mewl mola mole moll moly mool melee molly moola muhly muley mulla
ail bail fail vail hail jail kail quail mail nail pail rail sail tail wail al