There are many offers from many companies with KYC / AML for OTC type deals in Europe, I imagine you will want to sell some cryptocurrencies in large quantity b2b.
What these types of companies normally do are face-to-face deals to discuss the terms and proceed with what is necessary for the procedure.
If a face-to-face meeting or a digital meeting is not a problem, with everything well done you can easily achieve it in Europe, the thing is that you will have to analyze what is your best option
Kraken is a highly recommended option if we are talking about cryptos, of course.