With Airbnb integration now working with Schalge locks, I'd think that's generally the first place to look, though that will likely be coming with other brands as well. I adore my Schlage Encode Plus locks and being able to use my iphone to unlock with a tap is glorious. It's also great that Airbnb automatically creates access codes for guests scoped to the time of their stays.
The integration with Apple Home, especially the homekey tap to unlock functionality is pretty great. They also works nicely with Home Assistant for folks interested in that.
Unfortunately for me, I have 3 of these locks on my property and Airbnb only activates the access code for one of them. Fortunately for me, I've written some code that duplicates the access codes to my other locks so my guests can use all of them.
I can say a lot more about these locks if desired. They are pricey, but I like how they work. There was a comment in a another reply here about battery life - it's true they do consume the battery, but it's not too terrible - you definitely get months and you can always see the battery level in both the Schlage and Home apps.