Want to change the air filters myself on the Rapide and was curious as to where to set the car on jack stands. I forgot to ask the service guys at the dealership when I was there last week. The had a Rapide on the lift in for service too!

 

General concept applies to your Rapide as well:
https://aston1936.com/2015/12/12/put...o-jack-stands/

I have jack pad adapters I got from here, but basically make sure you have some material between the stands and the frame rail.
https://www.astonmartinjackpads.co.uk/products