I can’t think of any reason to use a prepaid card for travel.
But you do want to search for a card with NO FEES FOR FOREIGN TRANSACTIONS.
Read this to start your search: https://www.creditcards.com/no-foreign-transaction-fee/
The other critical ingredient is the currency conversion rate. That’s something that can change at any time. But you might want to read this article to understand the issue:
Then there are other considerations, including bonus points you’ll earn or signup bonuses. Here’s a recent article on CNBC covering those issues: https://www.cnbc.com/select/best-credit-cards-for-international-travel/