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.
uraeus urus urase ureas ursae urease ursa
uraeus ferreous chares varus dares sieurs rares pareus nares aureus bares braes bureaus fares ares reuse gheraoes hares cares gaurs lares mares knaurs pares praus cereus xerus tares wares shares