Raisin, Lightyear, Bunq, Trade Republic, Wise - online banks with good interest rates:

[DoraExplora]

I should add that Lightyear take USD deposits and are paying 4.25% interest. I put in 21k USD and got 75 dolla interest after a month. I am very impressed.

 

[Lightning]

I have looked but I cannot find an answer. Does Raisin only support euro deposits in euro zone countries? I want to deposit USD but it seems like I can’t do that

Raisin don't offer USD deposits for Irish customers.

Lightyear pay 4.25% for USD deposits and sign up is painless and they have a good app.

Wise.com pay 3.85% for USD deposits.

USD rate varies with Interactive Brokers with decent rates only applying to very large deposits.

Lightyear might be your best option.