They should first make AirPods that can connect reliably to BlueTooth. Half the time I need to connect mine to my MacBook Pro I need to massage the BT and Speaker icons for 20 seconds.
- If it is already connected to an iPhone, it'll delay its appearance. Disconnect them from the iPhone.
- If you have lots of wireless devices (mouse, phone, wifi, keyboard, etc...) you'll probably run into an interference problem. My airpods connection doesn't drop often but my Wifi connection does.