I found one in the red wood which is extremely rare so don’t really recommend searching there plus it took me 5 hours to find it but it is cool but equus is literally the same thing but Easter to find but on the bright side super easy to tame
First of all, you don't need a Ghillie suit...just stay right behind it, crouch and when you get close enough you get a prompt to feed a carrot , which needs to be in quick bar by hitting triangle. Then will prompt you to ride, hit triangle again. It will run once mounted wildely. When it stops to buck, immediately hit triangle to feed carrot, repeat until tamed
Do not tame inside of spike fences or you will lose your precious tame and your life, as I found out. Simply place some carrots in the last item of your hot bar, feed it one and hop on right after. Have fun traveling where it wants.