Anything from 22" and larger will be fine. For sale are these fully functional, refurbished LCD flatscreen monitors. Available in 15", 17", 19", 20", 22", 23", 24" sizes and supplied with an HDMI adapter.
eBay
13.3 Inch Portable Monitor,Small HDMI Monitor,Built-in speakers Type-c HDMI Compatible With PC Laptop Phone PS4/5 Raspberry Pi
Aliexpress UK
HDMI Connectivity: Seamlessly connect to modern devices for crystal-clear video and audio. Dell HDMI Monitor. Power Cable. Images provided are for illustration purposes only. Professionally Refurbished and fully tested for optimal performance.
eBay
Portable Monitor 11.9 inch 1080P 250cd/m² Small HDMI Monitor with Dual USB C HDMI External Display for Laptop PC PS4 5 Xbox
Aliexpress UK
Ports: VGA, BNC, USB, HDMI, AV input, DC 12V. This product has 4 kinds of input mode (HDMI, VGA, AV1, AV2), or a cable connection, press the AV1 / AV2 button, Switching input mode and a corresponding mode.
eBay
HDMI Switch Splitter 8K 60Hz 4K120Hz Bi-Direction 1 in 2/2 in 1 HDMI Switcher out for TV Xiaomi Xbox Series X PS4 HDMI Monitor
Aliexpress UK
GRADE Functionality - may show signs of usage or minor Scratches blemishes (does not affect performance) - Provided with Height adjustable tiltable iiyama Stand - NOT ORIGINAL STAND. Model E232. Ports 1x HDMI, 1x VGA, 1x DVI.
eBay
Uvusee 10.1inch Small 1080P Portable IPS HDMI Monitor 1024x600 Built-in Speaker HDMI VGA AV BNC Input For PC Game CCTV Camera
Aliexpress UK
Dell P1917S. SCRATHES SCREEN AND BODY. Signs of wear and tear on the casing. Monitor 1280 x 1024. with Stand.
eBay
Navceker Thunderbolt 3 USB C HDMI KVM Switch 4K 60Hz Type C USB KVM Switcher 87W PD Charge for 2 Computer Macbook 1 HDMI Monitor
Aliexpress UK
Has iiyama stand that supports rotation and has adjuststable height. HDMI, VGA and Display port output (VGA cable and power lead supplied). 23" HP Elite Display monitor. Picture for display purposes only.
eBay
Touchscreen 7/8 Inch Portable Small Monitor Built-in Speakers for Laptop Raspberry Pi PC Xbox PS4 PS5 Switch HDMI Monitor
Aliexpress UK
Model: Dell P2217H. UK 3-pin power cable, VGA, HDMI and DisplayPort cable included. 1x DisplayPort port. 1x VGA port. 1x HDMI 1.4 port. Maximum Refresh rate: 60Hz.
eBay
5-inch IPS LCD 100% sRGB display panel HD(H)1024 x 600 hdmi monitor suitable for Raspberry Pi5/Pi4/Pi3 Mini Monitor
Aliexpress UK
Anything from 22" and larger will be fine. For sale are these fully functional, refurbished LCD flatscreen monitors. Available in 15", 17", 19", 20", 22", 23", 24" sizes and supplied with an HDMI adapter.
eBay
Eyoyo 5 Inch Mini HDMI Monitor Gaming 800*480 LCD Screen Car Rearview Home Security Fast Response Portable Display Raspberry Pi
Aliexpress UK