Many pet stores carry cat perches, condos, and trees that give your cat vertical space to explore. These structures are usually multi-level towers with places to sit in and on. They may be made of carpet and other materials that encourage your cat to dig their claws in to climb and scratch.
The desire to sharpen their claws is natural to cats, and a perch or tree can help save your other furniture from their claws. If possible, have at least two towers in different rooms of your house. Consider putting them by windows and rearranging them periodically so your cat receives additional mental stimulation from being in different areas of your home.