Can be tamed.
Located in Jagged Wastes, Deepholm. This gyreworm is available to Blacksmiths only. It spawns during the Blacksmithing quest An Ear to the Ground, which becomes available from your BfA Blacksmithing trainer when you reach a skill of 150 in Battle for Azeroth Blacksmithing. While the quest is in an open area, it appears to be phased so that only the quester can see the worms.