WowAce

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

Where are the hidden treasures in Legion?

Tracks rare drops, including companions and mounts

Where the Treasure Hunter objects are in Draenor

Where the Lost and Found objects are

Find five Ephemeral Crystals, get a pink hippogryph

Collectinator is an addon which will scan your pets and mounts and provide information on how to obtain them.

Add-on that shows which mounts can be farmed this week

Auto and random summon highly customizable for your pets and mounts, with Data Broker support.

mount and companion manager

Add-on that shows which battle pets can be farmed this week

Dynamic mount macro generator

Shows the health of the player's current bodyguard.

The One-Key-Mount™ — Simple to use, configured with Rock

Pet Theory

Shows the source of an item as a tooltip

Displays Pet Info for Hunters and Warlocks. Also keeps track of Stables and Pet and Demon skills.

Interface-central mount management

Don't underestimate your little critters!

Generate a macro with random mounts