I finally pulled the trigger on a used D850 for my cousins wedding next month and Im so hyped to use this thing! The sensor is insane but now Im stuck on glass.

Ive been looking at the Sigma 35mm Art because everyone raves about the sharpness but it looks massive to carry around all day. Then I saw the Nikon 85mm 1.8G which is way cheaper but Im worried it might be too zoomed in for the venue. I have about 900 bucks left in my budget and I really want that one perfect prime that can handle low light. What do you guys think would be the best all-rounder for this body?