Don has a Samsung Galaxy S9 and they're going to take a cruise to the Baltic soon. He wants to know if he should sign up with Google Fi before he does. Rich used to buy the SIMs, which is the best way to do it. Don should check out Prepaidwithdata.wikia.com for what is the best in the countries Don is travelling to. He can also try getting a MiFi Mobile Hotspot. That way he can use it overseas with multiple devices. He can also try using the Passport plan with his carrier. He can also check out Verizon's international options, which offer 2G coverage for free for users.
But Google Fi may be the best bet, although his phone number is going to be different.