Minimum specs: RasPi Zero 2 - 512MB RAM
Best option: RasPi 4 - 2GB RAM
MicroSD card(doesn't have to be this one, but this specific card comes preinstalled with PiOS)
HDMI Cable (You most likely already have this)
Some type of monitor - can be a computer monitor, TV, etc...
USB cable + power supply (You probably have this too if you have an Android phone)
Keyboard & mouse
Ethernet cable
RasPi case
Examples:adafruit.com
Heatsink kit