RE:Here come Social Media MARKETING COORDINATOR Job posting Google Ads should not be used, in my opinion.
This is not an online-store and there are not as many firms doing this. Google Ads is a good place to burn money, only. They should have got a comfortable rank at the searchresults, by nature.
I think mouth to mouth will be most effectiv and of course Reviews and talking about experiences on socialmedia. Alcala labs has got no good standing on facebook, for example.
Better way is to give the testet persons (rapid tests) a businesscard in order to write an review.
Google Ads would be something for productselling like Covisafe, if it will be aproved.
If questcap will enter the market for selling covidtests online, a placement on Amazon would be a good step. Not google ads, no way.