Can anyone suggest some important and current topics for GD?

Some of the important topics are: 1. Changing pattern in world politics: Rise of Nationalism & its economic effects 2. Brexit 3. Trump Era and its global pitfalls 4. Jobless Growth in India 5. Demonetisation & its fallout 6. Political Debates such as rise of Yogi Adityanath / Modi policies & Impact

There are lot of topics that could be raised in a GD. Current topics which can lead to heated discussions are: Start-up situation Donald Trump Brexit, US fed decisions, Upcoming technologies and some more.