Best option is two different Cellular Wi-Fi providers
FMCA has Tech Connect 50 /month Spring Mi-Fi UNLIMITED Data No Throttling
I also have T-Mobile 55Plus plan 72 dollars a month includes unlmited data (Throttled after so much) Voice and Messaging.
Now T-Mobile and Sprint have merged but as I travel
Some places i get good T-mobile.
Some Good Sprint (GReat in a few places)
Some both
Some ... Well not so good.
But the best option is two different providers.
What is good? Speed test hits 40 or more MbPS
What is great 80-100 MbPS
What is bad 20 or less.
What is worse ZERO