Python

https://automatetheboringstuff.com/
https://docs.python.org/3/tutorial/index.html
https://www.fullstackpython.com/ - Python-centric, but is actually also a good resource for learning dev in general

Go

https://go.dev/tour/
https://gobyexample.com/
https://quii.gitbook.io/learn-go-with-tests/