HYS € accounts

Hi, I’m a US/FR national residing in the Uk. Most of my portfolio is in $ and £ but I now have a fair amount of € that I’m looking to find a smart way to invest. I prefer to keep the Euros rather than convert to GBP for diversification and because kids might go to uni in Europe, I might later try to buy a small property etc. I was trying to find the equivalent of a High-yield savings account which is readily available in the UK & US but the € accounts all seem to have dismal interest rates in co