“Here is a list of some brainstorming techniques that can come in handy while having a brainstorming session:
1. Brainwriting: In this method people write down ideas or solutions on a piece of paper. Once all are done, they then create variations of existing ideas.
2. The negation technique: This method involves thinking of how your idea can fail and coming up with preventive measures for the same.
3. Reverse brainstorming: Here you start thinking about solution in the reverse fashion. Like thinking about the don’ts in business so that you don’t do them.
4. Starbusting: To reach a solution ask multiple question.
5. Rolestorming: Participants are assigned roles to be able to look at the problem from different perspectives.
You can read in depth about these techniques in this article: https://www.feedough.com/brainstorming-techniques/