Short of biolab-grade PPE, the Auras seem to be the gold standard. I use the Aura FFP3s if I'm going to be spending time among the public. A lot of FFP3s are really FFP2s at best, which are fine for relatively short exposure but not for a full working day.

Lateral/rapid tests have a lag of a day or so during which you can be infectious but the test isn't sensitive enough to show it. The best option continues to be masking and distancing. And full avoidance if possible.