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.
canoness canons canniness canines cannons canonise canonize conines coniines conenose goneness guanines quinones conins guanins guenons quinines kinins
canoness newness chinones tinniness tawniness doneness sunniness runniness puniness oneness nones nowness boniness bonniness fineness funniness phoniness ionones canniness goneness quinones loneness looniness mooniness pinones raininess saneness zaniness downiness tininess whininess shininess