Get it in a taming pen with your argy have some open windows and shoot it every 6 seconds with a cross bow or a gun with tranq ammo to knock it out
Next is the easiest part all you have to do is wait for it to starve since you wont have to worry about getting meat or narcotics every second when your taming it. Always get the highest lvl lower levels suck absoolutely
Easily knocked out when you use a bloa. When stuck shoot in head while you can and itll go down quickly. Tranq darts make the process quicker, but arrows will do the job just fine. They can be picked up and dropped into safe taming cages by argies to make this easy tame all the more easy.
When I was taming my sabertooth on mobile. I went to dead island, lured a sabertooth to the small island beneath the main dead island (sitting on a pelargonis), jumped down to the ground and started shooting it with my crossbow and tranq arrows. When it was down I placed wooden spiked walls around me, my pelargonis and the sabertooth. Then I just putted like 100 raw meat (I always have too much meat just in case) in it and fed it narcotic when needed. When it was tamed I got it into my raft and sailed home. Really safe taming.