Best network for USA roaming

what phone do you have - gomoworld may be an option if you have esim.

If I can't buy a pre paid sim over there , I just read online that you need a US credit to buy a pre paid sim , I'm not sure how true that is ,

I will have wifi from the hotel l'm staying in , l only really need the roaming data in case l'm stranded and want to order an UBER ,

if l go with the €10 add on for 1GB and only turn roaming on when I need to order the UBER , then turn it back off once the UBER arrives am l right in thinking 1GB should last a while ,, l'll have to ring 3 to ask what happens when the 1GB runs out though .