WowAce

Provides one or many informational windows with optional interactive widgets.

Where are the hidden treasures in Battle for Azeroth? Show in HandyNotes

Where are the hidden treasures in Legion?

Tracks Raid/Instance/World Boss lockouts for all your characters, daily/weekly quests, currencies, trade cooldowns, and more!

Tracks rare drops, including companions and mounts

Uses various methods to scan your surroundings for rare or specified NPCs.

Remember where rares were

Displays the locations of Hallow's End candy buckets.

Where the Lost and Found objects are

Where the Treasure Hunter objects are in Draenor

Where the lore is at

Displays the locations of Lunar Festival elders.

Displays the locations of Summer Festival bonfires.

Adds mob patrol paths to your map.

Displays the locations of the chests for the Treasure, Treasure Everywhere achievement

Teleporters in Suramar? Sure, why not?

Achievements

Show all the leyline taps in Suramar

Books in Azsuna? Sure, why not?

Show where the chests are for Withered Army Training