WowAce

The original source for where things are in Pandaria

Officially the original source of knowledge of where things are in Draenor during Warlords, in HandyNotes

Officially the original source for where things are in the Broken Isles, in HandyNotes

The original HandyNotes source for where things are in Battle for Azeroth

Track time played, rested XP and money for all characters

AutoMagicly clicks though Daily Quests, and Turns them In.

Keeps account of attendance and loot for raids, parties, bgs, arenas and solo for questing.

Bayi's Extended Questlog

tracks and share quests between your party

Questing minion

GrindStatus

Quest History tracker and shows lists of quests in each category

Keeps track of quests.

Switch macro depending on zones or BigWigs boss modules.

QuestLog

Improved Questing Experience

Drop the cheapest thing you're carrying

Provides quick access to information on your group and their equipment, enchant and gem choices.

A Collection of Automations and Interface Tweaks.

Better quest log and tracker