I'm lending pets myself for Goals. So if you need one, feel free to MM me. There are a few pets that get zapped every day (e. g. I had a Fairy Addow until yesterday). Here are the pets that aren't get zapped and can be relied on staying the same color:

Amaroo
CaringForMe
Curara
Lascriba
Miramar
Piathaka
Redflamintail

Potomko and Zabate will stay their color for now since I like them the way they are very much.