Amazon.com: SparkFun Qwiic Shield Compatible with Arduino Nano-connect the I2C bus (GND, 3.3V, SDA and SCL) to four Qwiic connectors (two horizontally and two vertically mounted)-daisy chaining-Soldering Required : Electronics
Can't Get I2C to Work on an Arduino Nano? (Pinout Diagrams) | Big Dan the Blogging Man
SDA and SCL not analog pins - Project Guidance - Arduino Forum