As everyone tends to use different apps for messaging, I wish there was some sort of universal way to add contacts from any app to an "Always Send Notifications

As everyone tends to use different apps for messaging, I wish there was some sort of universal way to add contacts from any app to an "Always Send Notifications When These People Contact Me But Nobody Else" list. Like, I can mute individuals in Messenger or whatever, but I want to mute everybody but my wife and my parents back in the US in case of emergencies, whether they call me or text me or use Messenger or Whatsapp. That would obviate the need for DnD or silent modes for me, at least.