I think you have two choices. You can use the services of a specialized company that deals with content for websites, etc., where you will be offered a specialist who will do all the work, including a plan of action at least for the near future. If you need a more economical option, then you can invite a freelancer or just a beginner who has just started his way in this business and can make the work for you much cheaper. To understand if a specialist is right for you, you can give him or her some kind of test task that will help you to understand his potential and attitude towards the work as a whole. Or maybe he's a good specialist, but you won't like his style of work.