Okay, I’ll try CVS/Walgreens/et. al. If you don’t mind waiting until February, I guess that’s an option. Finally I just gave up and scheduled an appointment within the next two weeks at a clinic 90 minutes away. Then we happened to walk into healthcare provider Kaiser that is ten minutes from home: big fucking arrows and signs, “Walk-ins welcome!!!!11” And so we went back the next day and got our booster shots. But here’s my question/complaint: Kaiser is also the clinic that’s 90 minutes away, where we scheduled our original appointment. On the Kaiser site, there is not a single mention of a walk-in option.
My conclusion is that we appear to have to rely on Facebook posts, and rumors from friends to find a booster because the “official” channels are either not useful or just plain abandoned.