It's an idea to store multiple cats scratching furniture at home, such as cat paw boards. Especially if you have several floors (with stairs), if your house is very large, or if you have several cats in the house.

If there are several cat-scratching pieces of furniture at home, such as cat scratching boards. Then cats are less likely to stay in rooms without scratching boards, and less likely to stay on furniture in those rooms. Focus your attention on the room your cat spends a lot of time in (where cats prefer to lie), especially the living room, TV room, playroom, lounge, etc.
Find the furniture the cat has scratched, and find out where the cat hangs out. If the cat spends the most time on your chair, place a cat scratching furniture, such as a scratching board, near the chair.
You can also put clean clothes or personal items on the surface of those places (like your favorite chair), and don't put cat scratching furniture so that the cat will think these places are your "territory".
Through the above introduction and analysis of the use of cat scratching furniture, hope it helps you.