Where do you find sources for dropshipping? General Question

So I'm looking for the source to:
kusari ipad carbon fiber shell

And I see a bunch of stores that have them.. but I can't seem to find where the main company is so I can start dropshipping their products too.

Any advice on finding specific product sources?

Some form of contact info I guess.

kusari ipad cases and acase ipad cases sell on amazon/ipad case stores, but I have no idea how to reach them directly.