what ,debit cards, that work for international transactions

Most credit cards accepted over here, (UK,) either have the mastercard or visa logo.

I'm certain a spammer will come by to answer your (likely) call and response spam friendly question.

Debit card from Bank of America as they have affiliate banks all over the world.
It's much wiser to use credit cards though - it's more secure in case someone scams you. Any amount is immediately taken from your debit card whereas with a credit card you have recourses and have the charges removed. It may take a long long time until you have any charges credited to your bank account again.