If you are worried about missing shots at a paid gig, the Fujifilm Fujinon XF 90mm f2 R LM WR is basically the safest bet for that X-H2S sensor. I have used it for events and the linear motor is way more reliable than the 56mm when subjects are actually moving. It is a solid, predictable lens that just works.

• AF speed: The 90mm is significantly faster and quieter than the 56mm.
• Price: You can find these used for about $700, which leaves you extra cash for your trip.
• Reliability: The f2 aperture is more forgiving than trying to nail focus at f1.2 under pressure. Honestly, id just go with the 90mm to be safe since you need reliability this weekend. You could also look at the Viltrox AF 75mm f1.2 Pro X-mount to save a lot of money... it is a solid budget pick, tho the 90mm is more of a sure thing.

Late to the party but I gotta ask... are you shooting tight headshots or environmental portraits in Brooklyn? In my experience, knowing the space is key for reliability. I've tried many setups and if you need speed:

• Viltrox 75mm f1.2 AF Pro has insane bokeh and the AF is snappy, though its chunky.
• Sigma 56mm f1.4 DC DN Contemporary is way lighter and focusing is instant. Super safe for moving people.

Honestly, I went through this exact struggle last year! I started with a really bulky setup and it was basically a nightmare for my back during long shoots. I finally tried a more compact option with faster motors and it was a total game changer!

• super snappy focusing
• way cheaper than I expected
• light enough for all-day gigs I fell in love with my Sigma 56mm f1.4 DC DN Contemporary for Fujifilm X because it just works and is so light. It made my workflow amazing!

To add to the point above: the environment really is everything, but focusing reliability is what usually lets me down. I had a situation a few months back where I brought out a lens I thought was top tier for a fast-moving portrait session. Unfortunately, the glass just could not communicate with the body quickly enough. I missed the most important sequence of the day because the focus motor decided to hunt right at the climax of the movement. It was incredibly disappointing to realize that all the technical specs in the world dont matter if the hit rate isnt there. I have learned to prioritize a lens that stays locked on over one that just promises a pretty background. My current setup is built entirely around that consistency now because I simply cannot afford to miss shots for a paying client. Its honestly exhausting when you have a high-end body and the glass becomes the bottleneck. I would focus purely on the motor tech if you have a gig coming up so soon.