Can someone recommend an ETF (or something) to buy to “lock in” the current exchange rate between the dollar and the euro?

We want to go to Europe next summer and exchanging physical currency seems to cost a lot in terms of fees. I’m looking to take $3-4k and basically buy euros at current rates and hopefully sell them for dollars next year when I think the rate will normalize. We’ll use our credit cards to make purchases but it’s more the psychological feeling of getting euros at the current exchange rate. Feel free to tell me I’m an idiot.