Create list of leads captured on google maps

Create list of leads captured on google maps
I need to put together a list of potential customers in the dentistry niche, I'm going to want 350 leads. I will provide Facebook Ads traffic manager service. But, depending on the potential client, if he has a bad website (or doesn't have a website) and also has a profile to publicize his work that is bad on Instagram (or doesn't have it), I will increase my proposal to offer these services that he doesn't have or that is very bad, in addition to traffic management.
I confess that this is the first time I'm coming here to outsource this work, so I hope you do your best and bring me every detail so that when prospecting, I don't have any doubts or missing any data on the potential client to get in touch with with him and know what he does, what is good or bad, what he has or does not have, etc.
I want the main contact of the clinic (or office) owner, his instagram (if he has it), his website (if he has it), the area he specializes in, the city he works and lives in and everything you can get! In addition to everything I mentioned above... I think it was pretty clear.
Pick up potential customers who are aware of what traffic management is, they still don't use it and they know that they need this work to earn more money and profit, and besides, they know that they will be left behind if they don't get in as soon as possible.
Preferably those who live in cities and states who are willing to invest a good amount and at the same time are open to listening and agreeing with the proposal I will make.
If you know that other tools can be even better to deliver the result I want, feel free to use it.