Rotatable Horizontal-to-Vertical Mount Plate Kit for Sony Alpha 1 / Alpha 7 / Alpha 9 / FX Series【SmallRig - DIY Camera Rigs, Stabilizers and Other Camera Accessories】
www.smallrig.com
It does not mentioned that the A1 II is supported but they may just need to update their docs as it appears to be a pretty generic fit. You also would need to check the lenses that it supports.
Thanks Tim... I did see that, however, since the A1 II is basically using the A9 III body, I am a bit apprehensive to order it. I just may have to call Small Rig and ask them.
I was looking for the same thing, but ended up discarding the Smallrig because of the size: Smallrig gave certain glasses as incompatible. I keep looking for a suitable solution, and NiSi told me that with certain lenses I should go with the 72mm. FYI: I am using the Tamron 28-75mm G2 on a7c ii. The item is the NiSi Wizard Camera Positioning Bracket W-72.