Keter Comfy Plastic Storage Box Outdoor Balcony Courtyard Waterproof Sun Protection Garden Seating Capacity up to 220kg

I asked around a lot, and this one is the only top cover that can support weight and seat people. The details are nice too, with a handle on one side and two wheels on the other. You can pull it along easily, and you don't have to worry about it outside since it's waterproof and sun-resistant. It really offers good value for what you get.