Really wish someone made a lightweight gravel fork that had more like 60-70mm of travel. I believe the Fox TC32 goes to 50mm but that doesn't seem like it'd be enough if you wanted to get your bike in places where a sus fork would really make a difference.
The Suntour GVX V2 (matte paint, revised damper and an air spring with a proportionally huge negative chamber) isn’t as light as the Fox fork and the air spring requires pressures in PSI about your body weight in pounds, but overall it’s a good fork and is adjustable up to 60mm of travel. It’s about 150g lighter than the V1, thanks to a hollow crown.
I ran this with a Carbonda CFR707 for a while at 60mm and then 50mm, but knee issues have made the slack seat tube angle uncomfortable so I’m going back to the carbon fork. It would be fun with a frame specifically designed for that much fork travel, if you ride rough enough roads and trails, but in my case it was a bit of a failed experiment.
I have the GVX V1 and V2 with 15x100 axles (another unique feature of the GVX though they also make it in 12mm) for sale in the USA if anyone’s interested. Both low miles/gentle use and pristine condition.