You can use points at the Disneyland Hotel, Grand Californian hotel side and Paradise Pier Hotel.
You can also use RCI exchanges for many timeshares in the area. Right now 2022 is only weekly exchanges with RCI, but nightly will open up, so keep watching and calling on those.
Another option is to rent out points and use the cash to stay at the hotels across the street on Harbor, they are actually closer than most.of the Disney hotels.
Also, in San Diego, you can use points at Hotel Del Coronado, which is the hotel that the Grand Floridian design was heavily influenced by.