It’s currently Charles, Camilla, Anne supported by Timothy, Edward, Sophie, William and Kate.
Princess Alexandria looks like she has possibly come to the end of her working life, Prince Edward still does bits and bobs I think, but has had 2 strokes at least and Prince Richard and his wife are also part time currently, I think.
I think the likes of George and Louis in particular and maybe Charlotte will be mid 20’s and post university/stint in the forces before they even think about full time Royalling.