The first method is rather time_consuming. In this case, you can look up community forums, such as those in the IT (Information Technology) field and look up free template building tools. Then you'd have to do it yourself. The good thing about this is that you can use it again and you'll be familiar with the issues you would most likely encounter during training.
Marketing plan templates are developed by people who have achieved success online. They capture the lessons the author has learned along the way and save you the time, cost and effort required to develop your own. Once you have mastered a particular marketing plan approach, you can then expand by refining the template you have used or by adopting another template that might be more suitable for the marketing of a different product or service.