@sunflowers24 In Germany at the moment, I am sticking with Scalable Capital with a 2,3% pa paid each trimester in a deposit that anytime I can withdraw.
My gf is from CZ, and she has some czk there which give her over a 5%, but if you want to do the same with euros, just transforming euros to czk and back, you loose all the potential gain over what they give in germany.
I saw in euros one of the best is an italian bank, not sure the name.