How do you brainstorm your video ideas?

Hi, I am looking to run a mini poll to learn how do people get video ideas. Feel free to share how you get your video ideas. I included a few options to choose from below.

1) You look at what your competitors are doing

2) Random inspiration

3) 3rd party tools? If so what do you use?

4) You're just reuploading content

5) If not listed above, what do you do?

Just realized I posted this in the wrong sub forum. Can a mod delete this? Thanks

I start with a product to promote as I'm using Clickbank.
I see in the marketplace which products that I believe will convert through video reviews.
Usually, the health niche is my option.
Then I take the main keyword and doing some search on Google for low-medium competition keywords.