Depending on where you want to rent a car, you may be able to find some suppliers that accept debit cards. Make sure you check the Security Deposit section of the Rental Conditions and not just the Payment Methods, as some suppliers accept debit cards for payment but still require a credit card for the security deposit.
✏️ Our website has a specific filter that shows only suppliers that accept debit cards. It is on the left-hand side of the desktop version and at the top of the mobile version.