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.
wherever wherefore
forever wherever raver prover preaver moreover graver craver carver brevier braver bereaver arriver river rover riever deriver revere reiver refer reaver curvier griever nervier prefer server driver trover revery drover shriver