Low cost and low power but still have Linux makes the Raspberry PI Zero W attractive.
W stands for WLAN there is also a version without WLAN. Since WLAN is the only network connection it might be vital.
It can be setup using the rpi-imager to have username, password and connectivity to the WLAN.
It is 32bit and significant less powerful than the top Raspberry models. So be patient on the first boot to have it done its first setup and to connect to the WLAN. Using a HDMI mini (fortunately not micro) adapter allows connecting a monitor to observer what is going on.
The micro USB connector located in the middle is USB On-The-Go (USB OTG). Using a USB OTG cable, Keyboards, Mouse or USB hub can be connected.
The micro USB connector on the edge is the power in connection.
Pin 1 of the GPIO header is located close to the SDcard connector (row closer to the SDcard)
There are also two 2pin headers that could be soldered. The TV provides a video signal and the RUN can be connected to a reset button.
https://learn.sparkfun.com/tutorials/getting-started-with-the-raspberry-pi-zero-wireless/all