Affiliate Marketing Secrets

I am a product maker. And I am trying to think of one product that could be sold to people online. Though I am out of niches and need help of you guys to help me out of thinking something that I can think of to sell to people.
So my question is: What in your opinion people are looking for the most on the internet.
This includes both adults and teenagers.
What products are you searching to download for most of the times on the internet?
Please answer these question to help me find out what people are looking for the most and what can I possibly use to sell to people.
Thank you!