After much searching and agonizing I have found a local place that sounds very easy and possible for our Covid tests.  We had looked at CVS (apparently not available here; possibly at 13 days out) and Walgreens--only can sign up 5 days out, as well as possibilites at the airport or in Fort Lauderdale, as well as buying the monitored tests.   I called a local convenient clinice (walk-in, urgent care type of clinic) and they assured me that we can just walk in for our rapid antigen test