Take 3k stimberrys and give it to the anky or any herbivore feed it to them knocked out and wait for the dino to starve the Dino will feed on the stimberrys and still tame while it's starving after it starves feed mejoberrys or what ever you are using and it should cut the tame in half
1. Get tranq arrows and a crossbow
2. Find an anky of your desire
3. Shoot it in the head while walking backwards (they're slow so you can just walk while shooting)
4. When it runs away chase after it and shoot it
5. It'll be knocked out.
6. Feed it recommend food and any narcos if needed.
They get about 3x more metal than you! And depending on the level they can easily kill Raptors and other small predators.
They're found almost everywhere
Beaches, highlands, chalk hills, green forest, I've even see some near desert.