What does it mean when your AirPods keeps flashing a white light but won’t connect to your phone

Re: they keep flashing a white light

Seems your AirPods are charged and in "discovery mode"

ie: they are ready for the connection with the phone:

If you haven't already:

you might want to try wearing your AirPods, 

and 

on iPhone: Try Settings > Bluetooth > tap "Not Connected"

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Else: Apple support have articles online to guide the process

How to: Connect your AirPods and AirPods Pro to your iPhone - Apple Support

What to do: If your AirPods won't connect - Apple Support

How to reset your AirPods and AirPods Pro

All the best :-)