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.
bleached belched blotched blushed
bleached pleached leached slouched belched latched leashed leched leeched letched mulched blotched filched lashed fletched flitched clashed clutched plashed flashed cliched slashed fleeched welched