How people cash out crypto actually in Europe ?

Can you list me the various platforms that allow a crypto cash out in Fiat to a bank account?

I don't have access to Mt Pilgrim for various reasons.

I'd also like to know which banks you recommend for a large cash out?

I'm talking about a 5-figure, 6-figure to 7-figure sum.

What documents do the banks require to access this money? Do I simply have to prove that I earned more with my payslips than the amount I initially invested?

Example: I invested 10k €, do I have to prove that I earned more than 10k € with my pay slips or my grants?

Thank you in advance.