I would like to see several API additions and for some current in more depth and details. This will help us in this Industry of Vacation Rentals.

AirBnB, VRBO, Booking.com, Swimply, StayFi, Operto, Price Labs, Google Vacation Rentals, Resort Cleaning, Ring, Yale, Folio, OwnerRez, Welcome Screen, Ok2Charge, iAqua Link, Pentair Pool and possibly much much more. These are a good start to be able to have for this Industry.