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.
murky murk mirky mark merk mirk marka margay markka markkaa marc merc
murky quark turk darky sarky perky murk mirky lurk larky quirky quirk corky barky jerky forky euroky burke burka braky narky porky darkey dorky turkey
mura mure murr murra murre murrey murry