Amazon Product Research

I am looking for someone who is able to find a product for an Amazon FBA brand launch.

I don't have a specific "niche" in mind, but what I am sure of is that I want to find a niche where there is the possibility to "develop" other products. (portfolio)

I think that tools like Jungle Scout and Helium10 have their limits (everyone gets the same results) so I'm looking for someone with less conventional methods who can find interesting opportunities.

I will provide the precise search criteria when wawrding the project.