The following is a list of useful Go resources that we refer to ourselves all the time:
The Go Programming Language — https://golang.org
GoLangLibs (external libraries) — https://golanglibs.com/
Go Packages (standard library) — https://golang.org/pkg
Go Package Documentation — https://godoc.org
Go Packages Explained — https://medium.com/rungo/everything-you-need-to-know-about-packages-in-go-b8bac62b74cc
Go Documentation (official site) — https://golang.org/doc
Go Downloads (all major operating systems) — https://golang.org/doc/install
A Tour of Go — https://tour.golang.org/welcome/1
Go Patterns — https://github.com/tmrts/go-patterns
Go by Example — https://gobyexample.com
Go Tutorial by Golang Bot — https://golangbot.com
Writing Great Go Code -- https://scene-si.org/2018/07/24/writing-great-go-code/
Go Performance Tuning — https://stackimpact.com/docs/go-performance-tuning/
Standard Go Project Layout — https://github.com/golang-standards/project-layout/
Golang Structs — https://www.callicoder.com/golang-structs/
Golang Modules — https://www.kablamo.com.au/blog-1/2018/12/10/just-tell-me-how-to-use-go-modules