To use sander on furniture palm sander is the best choice which you use on both new furniture and as well for refinishing.
In palm sander DEWALT Palm Sander, 1/4 Sheet (DWE6411K) is the best choice which you consider the best sander to use on furniture.
The palm sander will easily hold a quarter to half sheet of sandpaper on the grip. It’s used for wide, flat surfaces.
If you still want which sander you use, an orbital sander is the best sander for furniture. Makita BO5030K 5″ Random Orbit Sander is the best orbital sanding machine.