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.
prawner pruner pornier preener perineuria
prawner garner yarner trainer drowner drainer darner learner groaner grainer crowner branner frowner earner brownier browner brawnier warner yearner
prawn paranoea paranoia pirana purana pyran