Good idea Minz56
Hilton does the Flexible Dates the best ..with a dynamic rates map (and the map is 75-80% of screen width vs AirBnB map maybe 33-40% of screen width / much smaller)

As scroll across the world, can zoom in to regions, countries, cities / areas of your desired rates (or Points Award) over next few months.
With this info, can make your own route / focus on particular Points or Money zones.

Of course, need to hover pointer over the properties and click to get calendar of rates,. Simple...hello IHG Chief Global Customer Office , wake up and help your customers !

Marriott has a map , but rates are not dynamic as scroll across map, so need to enter another location if outside of original map view.

Radisson, I just don't bother ...only use R whena) few/no other multinational hotel group properties and more R's. eg Norway, Swedenb) some properties in Georgia Republic, where there are real quality & quantity Welcome Amenities versus Norway often no amenity or a 35-40gram Maribou chocolate bar ...had interesting email exchange with CEO & Exec Assistant