I found wordpress.com/ useful as it is relatively easy and gives you the full powers of Wordpress which is a strong Blog platform. It will allow you set up a Blog free. You can post several articles and publish them when you are personally ready.
There are other platforms such as Blogger but wordpress. Com is suitable.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.