Weird... I live in the middle of nowhere, 1/2 drive anywhere, gasoline, groceries, vaccines, whatever. Our closest drug store, aka pharmacy, offers Moderna on Tuesdays, Pfizer on Wednesdays, J&J on Thursdays, 10am until 2pm. First shot, second, booster, no matter, as long as you are 18+ or accompanied by an adult.
Problem we have is finding people willing to take the shot. Made me feel real guilty getting a booster when on other parts of earth are seeking whatever vaccine they can get their arms in, or maybe the other way around.