First, it's important for me to say there are two types of people in this word: Nikon people...and Canon people. Some people are Canon people. I'm a Nikon person. :)

This is a list of the equipment I bring with me to every single wedding and most of it comes to portrait shoots as well:

The Cameras:

Nikon D850: Incredible detail, 45.7 megapixels, and up to 9fps shooting. Let's just say I'm obsessed with the detail in every shot. 

Nikon D810: This is a full-frame, 36.3 megapixel camera that captures crisp, beautiful images even in low light on high ISO
Nikon D800E: My back-up camera which has very similar specs to the D810.

The Lenses:

I'm sort of a lens hoarder, so while I have several others, these are my tried and true friends that come with me on every shoot:

Nikkor 24-70mm 2.8 VR zoom lens
Nikkor 70-200mm 2.8 VR zoom lens

Nikkor 14-24mm 2.8 zoom lens
Nikkor 50mm 1.4 prime lens

Nikkor 85mm 1.8 prime lens

The Lighting:

Paul C. Buff Einstein E640 600Watt Flash Unit with Battery Power

1 Nikon SB-5000 Speedlight
2 Nikon SB-700 Speedlights
Paul C. Buff 24x32 Softbox
Westcott XXL Rapid Box
Westcott 6-in-One Reflector