http://www.netz-wandern.ch/index.html - in Swiss/German
https://www.wehike.ch/ - Organise your own hikes
https://www.cicerone-extra.com/ - Cicerone the publisher of hiking guides puts out this interesting blog
Via Alpina Green Trail Altdorf to Adelboden
Hike over Bunderchrinde Pass in the Bernese Alps
Hike to Surenenpass in the Uri Alps