I have "wide" sit bones and am on a narrow saddle, Selle Italia SLR Boost 3D S3 on my areo road bike and the Boost Endurance on my gravel, both are super comfy for me and have done multiple 300 - 500km rides. I am around the same height but slightly heavier than you around 95kg.
They do a larger L3 version, but I have found them to grate on the inside of my thighs. The 3D printed on I find keeps me more stable (and is grippier) and the difference in padding is around the same, but the 3D one is very expensive.