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.
borax braxy brux bureaux borks brags barcas bourgs brakes breaks burkas burqas berakes barracks
berake boric bork bourg brag braggy brake braky break