Before this, I have share How to Display on I2C OLED Using Raspberry Pi. So besides OLED, there have another alternative cheap display you can consider. It is I2C LCD. So this tutorial will show you how to display on I2C LCD using Raspberry Pi.
You may need to refer following tutorial first:
This video will show you how to display on I2C LCD using Raspberry Pi Zero WH (2018-06-27-raspbian-stretch).
This is sample code and library used in the video.