Aqueel Happy

I tried so hard to find a way to get myself an Elk to mount and ride. I tried exploring in order to find one in the wild, I tried trading a pickaxe with a trader and exploring the resonance archives then going back to the trader and yet nothing happened. Why aren't you specifying the ways to obtain one? there aren't any guides on Youtube or guides on the internet, the only thing I could find led me back here. it is so tiring .