eBay has the Microsoft Surface Pro 7 Core i3 128GB 12.3" Tablet w/ Keyboard for $599 with free shipping. Features Intel Core i3-1005G1 1.2GHz Dual-Core, 4GB RAM, 128GB SSD, 12.3" display (2736x1824), 802.11ac, BT 5.0, Windows 10 Home.
Has excellent Amazon Reviews.
Walmart has the Lenovo Chromebook Duet 64GB FHD 10.1" Tablet w/ Keyboard (Ice Blue + Iron Grey, ZA6F0031US) for $249 with free shipping.Features 10 hours of battery life, MediaTek Helio P60T 2.0GHz Octa-Core, 4GB LPDDR4X, 64GB eMCP SSD, 10.1" FHD IPS touchscreen (1920 x 1200, 400 nits), Google Chrome OS.