Merge connections from all your social networks

Hello,

I was doing research for finding users to talk to on my social network connections and found a big problem (at least for me): how do I find profiles from the closest people?

The closest people usually means people I am connected to on multiple networks (Facebook, Instagram, Linkedin, WhatsApp, and so on), the more networks, the closest the friend.

It would be great if there was a product that extracted all my connections from all networks and told me which people I have in all networks or at least two and are in a specific industry. These would be the first ones I would reach.

I did a quick research and couldn't find anything like it.

Have you guys faced anything similar? Would it be useful?