Local citations

How many local business citations do you think it is safe and natural looking to create per day?

tbh, being natural with local citations isn't even really a thing
if you look at services like Yext, they update your business listing across all the platforms that they have access to
they all get added/updates pretty much at once

Ok that's what I was wondering so I can turn in whatever amount then?

And thanks would you recommend me to use yext for a local business?

I don't think it matters that much. If you look like they said above companies like Yext and its almost instant. I have not seen anything about their postings getting blocked

I am a "Yext Certified Partner" and I would advise against them.
High monthly cost, and when you cancel your subscription, guess what happens to your citations?? FeelsBadMan
if you look at the local citations environment, you really only need to update a couple listings and it'll spread on its own
https://moz.com/learn/local/local-search-data-us

to get the most out of local citations, aim for quality over quantity
there aren't even that many sites that are really worth the effort. if you're really going to put in some work, then try searching for a couple industry relevant sites to add citations
just do your best to add as much content as possible to the major citations: description, pictures, hours, payments, reviews