Any way to Test if your Logo / Brand Concept is Unique?

3 years ago from , Creative Director at Deciduous

Hey! Much of my work is designing brand identities from the ground up, and I'm wondering if anyone has a good way to test different logo/brand concepts to see if there are any existing logos that happen to be close to the ones you've created? I've just been using google search, or reverse google image search. Do any of you know of a better way of testing your concepts?