Hey @Alexis438 I hope you are well!
For some of my properties I use a keyholding service like KeyNest or KeyCafe- you drop a set of keys to one of their locations (usually a local store, like a 7/11 etc) and the guests go in with a code and pick up their keys before heading over the the property.
Works great as long as you have a location close to your property.
You are notified automatically when guests pick up and drop off keys, it's really easy.
Otherwise, could you enlist the help of a local co-host who could meet your guests at the property for check-in?
Paul.