WowAce

Auto sizes frame layout depending on group/raid size

Displays reagent count on spell action buttons

Automatically restock items from vendors and your bank

AntiInvite

Shows the number of battle resurrections you have and when the next one will become available during a boss encounter.

Announce which globule to kill during the Yor'sahj the Unsleeping encounter.

StitchUI

StatFrameLib

A library which provide tools for detecting adverse effects on units.

Adds TargetIcon status to Grid2 (player / player-target).

WhiteboardNG

BarovHelper

Makes it very easy to collect rare battle pets.

A lightweight datatext-plugin for Elvui that shows you all the relavant currencies for Legion.

Debuff Monitor: A Powerful & Configurable Raiding Tool

Adds notes to item tooltips

MountLib

LibRockDB-1.0

Prints combat duration to chat after each fight

Opens professions and shows their skill level.