Surface Book 3: Powerful Detachable Business Laptop - Microsoft Surface for Business
Asus Dual Screen Laptop
UPERFECT X Rechargeable Portable Monitor TouchScreen 13.3 Keyboard Battery Mobile Phone Screen Lap dock for Samsung Dex Display|LCD Monitors| - AliExpress
ASUS ZenBook Pro Duo puts a large second 4K screen above the keyboard - SlashGear