Brainstorming & Ideation Generator

I give you a list some of effective ideation techniques:
1. Brainstorming
2. Worst idea
3. Storyboarding
4. Mind mapping
5. Negative Brainstorming
6. Prototyping 
7. Sketching
I need advice on which of these techniques to choose. You can offer me your solution. I need your full explanation.
Example:
I want to build an augmented reality application.