[Closed] Gravel routes / recommendations through Switzerland?

I am planning on cycling the Via Francigena, but want to explore alternative options for Switzerland as it looks beautiful and as I've never cycled through Switzerland before I am keen to make the most of it. I will be on a gravel bike with front low riders and having cycled through Switzerland am aiming to then pick up the VF which I believe does take in a lot of gravel roads when in Italy and heading to Rome.

Any route codes / recommendations from anyone that has cycled through Switzerland would be most welcome.

Thanks