I have a friend who is moving out of a house and into a small apartment. She loves to cook and is looking forward to having her own kitchen again. I want to get her a countertop appliance as a housewarming gift. Because her space is at a premium, I want to get one that will be useful and used. I am thinking of either an instant pot/multi-cooker, a countertop oven or an air fryer. My budget is ~$75. What do you think is the most useful in a small space?