Effective Strategies to Prospect Google Map Companies Without Websites

Hello, We are a bit stuck on a use case for a customer... We would like to find a way to prospect Google Map companies without a website. Finding the list of companies is not extremely complicated, nevertheless we would like to find an effective approach to contact them. The problem: - Can't scrape site / footer - Can't scrape email attached to domain provider - Targeted businesses are generally not on Linkedin (restaurant, bar, craftsman etc...) Do you have any ideas on how to do this and what tools you would use to integrate into Clay? We've been stalling on this for a while, the only option that comes to mind would be to automate via Instagram / Facebook social networks... how would you proceed in this specific case? Thanks