Help! Frodo is a chewing maniac; what should I do?

He’s a great pup but he’s still a pup. Doing terrifically on the housebreaking and quite intelligent but he is chewing on the furniture and the baseboards in the house. I know this is puppy behavior and normal but…. He has a number of chew toys which I give him but he still goes for the woodwork. Sprays? We’ve put duct tape around some of the cabinets. Is that the best thing or what? He’s a bright little guy but very rambunctious at the moment.