@emkay Glad to see that we are compatriot! 😉
Indeed, all depends form your budget and from exactly what you're looking for.
Living in Switzerland as well I'm using a Nexus 5 as second daily phone.
You can find some (new or new refurbished) on several platforms such as Aliexpress, Ebay, etc...) Prices vary from 30.- to 120.- depending on the general condition of the device. Despite the fact that it is quite old now, I must admit that it works wonderfully!
I would also recommand Xperia X Performance which is a new port offering a progressing good maturity on UT as well as an excellent Price/Quality ratio (approx. CHF. 180.- for a new one). You can easily find some by most internet retailers.