Based out of Los Angeles, Celitech is the world’s 1st digital-only cellular data provider offering global mobile data via web app & api. Our service works with eSIM-enabled devices and you can check it here: https://celitech.com/service. This is definitely worth a look.
5) At Last: A Global Cell-Data Service
I think GoogleFi provides much better coverage for international roaming more countries at 3G for upto 5 months for data, but continued service for phone calls and texting. The next best would be T-Mobile at 2G for up to 4 months. Both have worked great for me in Papua New Guinea.
Had a look at Lufthansa Mobile or MTX connect (SIM or eSIM)?
Especially when not for long in one country/region intrnational SIMs are of value. Otherwise a local SIM may not be as convenient, but generally cheaper.