If you need stone, I highly recommend getting a Doedicurus tamed. It's the best stone farmer and reduces the weight of stone by a lot.

Apparently, you can have the Doedicurus farm stone in the air if you pick it up with a Argentavis. Haven't tested it, but that's what my brother told me. Take it with a grain of salt.

It can get around 400-500 stone per swing (although now that I think about it today is the weekend and isn't there like weekend events for Increased harvest?)

Abilities That I know: Roll, you can start rolling in a direction, uses a little stamina, but decently quick for a Doedicurus. Then there's the main hit, for hitting stone, and atleast wild ones curl up in a ball and I would assume take less damage.

I got my first Doedicurus recently, so take all of this with a grain of salt.