This one works well and allows you to use the Fuji lens cap. I also have a Glimmer Glass filter for this camera, which I like better (but is a soft filter that creates some halation, so not an all-purpose filter) but then I can't use the lens cap. So if you want just basic protection and a slim profile, I'd go for the NiSi.
Fits Fujifilm X100, X100S, X100F, X100T, and X100V Absorbs Ultraviolet light Protects the front of the camera lens Multi-coated for ultra HD sharpness Optical glass construction Designed to complement the X100 camera finish
www.amazon.com
Were you able to source a camera?