AlpenTourer magazine regularly has some very good route suggestions.
Yes, it's in foreign (of a version that I speak not one word of) but a map is a map and someone would have to be pretty dumb not to be able to work outt:
The total distance is 5,150 kms
The web links
The hotel suggestions
The attractions to see
The author is Alex Milz and that he has a You Tube channel. If Alex Milz doesn't come up with anything recognisable, let's guess it's Tour mit Tiger: