If by land film you mean the pack film used in the Land Cameras, Fuji still makes the color ISO 100 type, but has discontinued the high-ISO black and white.
Here’s a link: https://www.amazon.com/FUJIFILM-FP-100C-Inches-Professional-Instant/dp/B0000ALLYO
It’s pricey but it works so well outdoors and using the much more complex cameras is a lot of fun.
ETA: Looks like Fuji discontinued all pack film in 2016. I’m going to have to stock up.
