Freeware are good to a certain extent, and normally, the functions are just sufficient for usage. If there is a bug, you will never know when it will be fixed, of course, it depends on the author. Also, you get no support, or at least in most cases you don't get support.
Whereas paid software will have alot more features and functions than freeware. Also, alot more bugs may come with them, but as a paying customer, you are entitled to support and also you can lodge complaints, and they will probably listen to fix them, otherwise they may go out of business in no time.
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.