I am switching to Lebara Europe:
- Unlimited calls to CH and Europe
- 6GB High-Speed Internet
- Unlimited SMS
at 19 CHF/month (forever, no minimum contract duration)
It seems to be on promotional sale for this price every few weeks. Currently they’re running an Unlimited-internet promotion (instead of 6GB/Month). 6GB should be enough for me though, as I was using my tablet for internet access on the go - before that Corona virus epidemic. I will be making international calls though.
Seems they have indeed introduced eSIM support for prepaid plans as well. Last time I was looking into it (though quite a while ago), it was only available on postpaid.