Argys aré one of the best tames, they can pick up anky's (who have like, Weight reduction on metal and obsidian if im not wrong) and be used to farm metal like crazy.

If on aberration, karkinos Is also good because It can pick two anky's and farm metal like crazy x2 whit the con of Weight and not being a flyer.

Argys aré pretty tanky and great fighters.

Theire saddle also permits them to be flying small bases due to It being a forge.

Theyre quite easy tames due to not being fast and because if theire dying you can feed them any corpse.

A trap made out of four-five wooden/stone normal Gates, two doors for these and placed infront of each other wide enough to be passed trought by you or a small tame like a raptor and you'll have one in no time.