Quick answer
Germany users should check SEPA deposits and withdrawals, EUR trading pairs, local card availability, KYC requirements and whether products such as derivatives or cards are available.
What to compare
Check KYC requirements, supported fiat rails, card fees, withdrawal costs, country restrictions, custody model and whether the exchange supports the exact products you need.
Safer workflow
Start with a small deposit, test a withdrawal, enable two-factor authentication and move long-term holdings to self-custody when active exchange access is not needed.