Really the best way to get a whole pack with this creature would be to train them like old school COD zombies if you have your movement speed up a little bit and so long as your close to a body of water you can escape and/or use the body of water as a tool to tame...now it is tricky but my partner and I use it a lot when we move to a new snow biome

Step 1

Obtain crossbow and tranks or bio (only tool that can fire underwater.

2.run to a pack that's close to water

3. Let them chase you and jump in water....

4.shoot like fish in barrel

Now I can see how this can seem like a high risk mission however the wolves will not travel too far in water and eventually retreat to dry land that's when you just pop up out and shoot them again to finish the knockout...the only other "hard" part is getting THE ONLY TWO GENDERS a male and female...then breeding can start and boom you have two packs that you have no idea what to do with because we picked up a couple and the next day there was 20 of em.....