I will continue to add Important Go Repos of Github here
50 Shades of Go: Traps, Gotchas, and Common Mistakes for New Golang Devs
http://devs.cloudimmunity.com/gotchas-and-common-mistakes-in-go-golang/
A curated list of awesome Go frameworks, libraries and software
An overview of Go syntax and features.
https://github.com/a8m/go-lang-cheat-sheet
GoDS (Go Data Structures). Containers (Sets, Lists, Stacks, Maps, Trees), Sets (HashSet, TreeSet, LinkedHashSet), Lists (ArrayList, SinglyLinkedList, DoublyLinkedList), Stacks (LinkedListStack, ArrayStack), Maps (HashMap, TreeMap, HashBidiMap, TreeBidiMap, LinkedHashMap), Trees (RedBlackTree, AVLTree, BTree, BinaryHeap), Comparators, Iterators
https://github.com/emirpasic/gods
A curated list of awesome Go frameworks, libraries and software
https://github.com/avelino/awesome-go
An authorization library that supports access control models like ACL, RBAC, ABAC in Golang
https://github.com/casbin/casbin
[Go] Package of validators and sanitizers for strings, numerics, slices and structs
Sumit Arora 