I reccomend building a taming pen 6x2 with doorframes around it... And then go to tbe beaver spawns. Pick one up with you argentavis, (yes you can pick it up with an argent) and bring it back to your taming pen. Tranq it with arrows or longneck rifle and feed it some gallimimus kibble. Make sure you keep an eye on the torpor because it drains pretty fast. After that enjoy your perfectly tamed beaver.
To help more than the calculator can, bring along 300 Narcotic, 200 mejoberries and 100 other berries. This is the rough average for these things, up to like level 180 or something. Hope my tip helps with taming! And make sure to build a 1x1x1 base made of stone, if you want to target one to tame!
Insane torpor drain, make sure you have all the narcotics you need first even with low levels. Took of for a maybe 2 mintues becuase i was low on narco berries to make narcotics, came back when before making more to check up on him only to find he was walking aeound the pen as if nothing had happened.......
Find a dam, find the beaver it’s always around somewhere. Sometimes more than one, get your dinos to attack it. While they’re attacking load up from the dam, if you haven’t got much weight size take a Dino with you. Pass to the inventory then run!!!