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.
spoliate sepiolite split splat spoilt spooled spoiled supplied spilt spelt spiled sepaled speeled speiled spilled spieled spelled suppled spalled sepalled sepaloid
palliate spoliate depilate replate haplite sepiolite populate papillate oppilate cupulate copulate epilate hoplite poplitei palate aplite polite plate pileate pelite paleate appellate toeplate