In Barcelona it is impossible to get an appointment for the residence card. There is online booking system, but it never shows any available slots. But then there are few companies that for 50-100 euros can get an appointment.

But then even with appointment one only gets a temporary permit unless one already got a job offer. One gets the permanent card only after starting a business or buying a property or getting a work.

Also to open a permanent bank account one needs to have at least a temporary residence. Otherwise banks can only open a tourist account valid for few months.