ASUS ZenScreen OLED 15.6” 1080P Portable Monitor (MQ16AH) - Full HD, 100% DCI-P3, 1ms, Delta E < 2, HDR-10, Eye Care, USB Type-C, Mini HDMI, Proximity Sensor

My laptop is 15.6" so it was a requirement to get one that size. I also wanted a battery so it doesn't drain my laptop battery if I'm not plugged in. Also needed the USB C input on the left side because I work with a mouse and the keyboard must be on the left. I got ASUS Zenscreen and it's been working mostly good for years. The only thing is once a year or so it just doesn't turn off and on, and I have to just let it die overnight and plug it in again lol.