I use a Revolut card for this purpose. Pre-pay the card, pay the amount required. Also benefit from interbank rates for foreign transactions. Also means that if

I use a Revolut card for this purpose. Pre-pay the card, pay the amount required. Also benefit from interbank rates for foreign transactions. Also means that if the card details are stolen from the merchant or processor, or are stolen in transit, all they have is a prepay account number with a $0 balance 99.999% of the time. If they get my checking account debit card number, they could easily take dozens of dollars on any given day. Dozens!