My objective is to be able to easily catch when top brands/athletes/celebrities tweets about a specific topic like "interior design" so we can then reply to their tweet. The purpose is not to gain the attention of that brand but to be visible to their followers. I know I can just follow a hash tag like "#interiorDesign" however I want to weed out all the basic twitter users and only go after the big ones.
Anyone have an idea how to accomplish this?