Hi,
Would be great to integrate the following providers:
Pay.nl -> https://www.pay.nl/docs/developers.php
Mollie.nl -> https://docs.mollie.com/guides/authentication
Both of them provide better and cheaper service then the already built in Buckaroo option
@Poppedweb has pay.nl
https://poppedweb.com/en/addons/pay-nl-payment-gateway/
AFAIK there are no other Dutch payment providers for CS-Cart.
If you are a bit bigger, try https://marketplace.cs-cart.com/add-ons/integrations/adyen-payment-gateway.html?sl=en