What's the best way to identify duplicate listings?

[formandfunctionagency]

I'm doing manual duplicate research for an account and wanted to know if anyone had a resource to share on how to find duplicate listings for GMB and other citations.

https://searchengineland.com/definitive-guide-duplicate-research-local-seo-238719

Ive been working off of this article from Joy Hawkins, but she mentions using Map Maker to search a phone number, but Google has since shut Map Maker down. Maps doesn't seem to work the same way, as I've searched a phone number which I know has duplicate listings and they don't come up. Any tips on a better tool or process?

[Saijo.George]

Have you consider using tools like Moz Local, Synup, etc

If you prefer to do it manually Create a list of

• Business Name Variations
• Phone Number Variations
• Address Variations
• Website Variations

Then do a " " search in Google. eg: https://www.google.com.au/search?q="business"+"123456"