I have been happy with this:
PAWLAND 144-inch Extra Wide 30-inches Tall Dog gate with Door Walk Through, Freestanding Wire Pet Gate for The House, Doorway, Stairs, Pet Puppy Safety Fence, Support Feet Included, White,6 Panels
https://www.amazon.com/PAWLAND-144-inch-30-inches-Freestanding-Included/dp/B07YF74Z4T
