Best way to send money from Spain to USA

Hey there,

I wanted to see if there are any new ways to send money from Spain to the US with the lowest amount of fees possible, since a friend is trying to pay me back a loan.

I have heard about interactive brokers because of their low exchange rate fees, although not sure if I am able to use them for this since we are 2 different people.

Also considering doing it through cryptocurrency using Binance if that is a possibility.

Lastly heard about Wise being recommended before for this, but I am not sure I understand the fee structure due to the correspondent banks in the picture.

What do you guys think would be the best way? Open to other suggestions as well. Thank you in advance