Hi Andrew, and welcome to MySwissAlps!
We don’t create itineraries here, but can point you in the direction of information to assist you to create your own. When you have an itinerary, you can ask for comments on it if you like. Make sure to include your travel dates if you want accurate advice.
First of all, check out these links:
http://www.myswissalps.com/so uthwestswitzerland
http://www.myswissalps.com/mo ntreux
http://www.myswissalps.com/ge neva
http://www.myswissalps.com/la usanne
You might enjoy a trip on the Golden Pass scenic rail route from Montreux to Zweisimmen or all the way to Interlaken Ost.
http://www.myswissalps.com/go ldenpass
Local mountain trips in the Montreux area include:
Les Avants-Sonloup funicular
(train from Montreux to Les Avants, then funicular to Sonloup)
http://www.goldenpass.ch/en/g oldenpass/offer/view?id=8
Funicular Territet (Montreux) to Glion
http://www.mob.ch/en/goldenpa ss/offer/view?id=9
Les Pléiades (train from Vevey)
http://www.goldenpass.ch/en/g oldenpass/offer/view?id=85
Funicular railway Vevey-Mont-Pèlerin
http://www.mob.ch/en/goldenpa ss/offer/view?id=10
The Train des Vignes might also interest you. It runs through the vineyards from Vevey to Puidoux-Chexbres, but there will be a bus replacement service between 7 July to 26 August 2018, due to construction works. There is a bit more information in my post of Apr 30, 2018 – 2:01 PM on the following page:
http://www.myswissalps.com/fo rum/topic/saver-day-pass-sdp
You can use the Swiss Timetable to plan your trips.
http://www.myswissalps.com/ti metable
Alpenrose