Researching glass for the Sony Alpha 7R IV

I am exploring my options for my next camera, as of right now I own the Nikon D810. I am debating on buying a mirrorless camera, the one that I like the most so far is the Alpha 7R IV. Since I will be going into a new ecosystem and venturing away from the F lens into the world of the E I will need new glass.

I am researching to see which will be my first lens for the Sony Alpha 7R IV if I decide to foray into the world of the mirrorless. In this post I will show the influential youtube reviews that are helping guide my choices.

I have narrowed my 'first lens' selection down to three:

Sigma 24-70mm F2.8 DG DN E-Mount

Christopher Frost Photography

Jared Polin

DPReview

Sony FE 24-70 mm F2.8 GM E

Dustin Abbott

Jason Vong

Sony FE 24–105 mm F4 G OSS Lens

John Sison

Cody Blue

And now for some detailed reviews by Camerlabs

Sigma 24-70mm F2.8 DG DN E-Mount

https://www.cameralabs.com/sigma-24-70mm-f2-8-dg-dn-art-review/

Sony FE 24-70 mm F2.8 GM E