It’s officially Summer on Azeroth, and that means that the Qiraji Guardlings are spawning. Get yours while they are available!
The Qiraji Guardlings are one of the two seasonal pet spawns, the other being the Snowy Owl in Winter, so if you miss them, you have to wait a year to complete your Safari / Zookeeper achievement.
You definitely want an S/S breed Qiraji Guardling. It is by far the most used, with its speed helping to deliver a Kick to stun the opponent. But with the pet cap being removed in 9.1, you don’t have to feel guilty about feeding the collector urge if you want to pick up extra breeds as well.