You can build a research topic through a mind map. You can use pieces or paper or textboxes to arrange your ideas.
In free association, you allow your thoughts to flow freely without interruption. You later review your thoughts and select what is useful/interesting.
Research questions are the idea you build your assignment around.
Research questions should:
Research questions are built out around an idea.
My starting idea is: Virtual Influencers
What I want to know about it: How do they affect what consumers buy?
My possible research question is: How is consumer behavior affected by companies' use of virtual influencers?
If I find I have way too much to write about, I can narrow down my topic more by changing it to something like: How is teenagers' consumer behavior affected by companies' use of virtual influencers?