Anyone trying to get Airpods (not pros) to work do this:
1. make sure airpods are in case, open lid, keep it open, HOLD button on back of case until light inside case flashes white
2. Enter Bluetooth pairing screen on Switch - IMPORTANT - don't swap steps 1 and 2
3. Wait at least one FULL minute, keep airpods as close to top of Switch as possible
It will eventually pair.