Binance has the lowest fees

1.5% is very high for Kraken.

Binance fees are 0.1% for a spot trade. Both for maker and taker.

Also, remember to check the exchange rate. I see some people do recommend peer-to-peer exchanges and they might offer a good fee rate but the exchange rates are usually very bad since the liquidity is very low.

If you are about to withdraw your EUR to another bank you should also check the withdrawal fees (Also, Binance has very low withdrawal fees 0.02%)

You can check exchange rates if you go to Coinmarketcap, Search for your coin, Click on the markets tab (unfortunately peer-to-peer are not listed here)

You can get even lower fees on Binance if you use a referral ID that will give you -20%. Here is such a referral ID: Q06V9V1I