SEPA is the direct banking standard in Europe. Basically every transaction between banks follows that standard. If you’re doing business in Europe, that’s the most direct way you can go. Many other companies and their transactions follow the SEPA standard somewhere anyway. An SEPA mandate is pretty safe for the customer, too. It can be canceled by the account owner at any time. It does not have any additional insurance layer, though.

Cash on delivery

Evil in what sense? Privacy? Ecology? Transaction fee? Reliance on FLOSS? Decentralization?

I’m behind the times. Amazon is obvious, but why is PayPal bad?

You. For making the picture so small i can’t read anything in it.

If your software supports authorize.net, you can often use some other gateways with a drop-in compatible API by changing the endpoint.