website design – How to find Logos for payment providers?

I am implementing a payment system (based on Stripe Elements). Each payment provider as SEPA, Giropay, Sofort, Klarna, credit card, etc. needs it’s own brand logo icon, to be distinguishable. I spent multiple hours searching for these resources.

Searching, checking licensing, reformating to or from svg, png, creating black and white versions of the logo. etc. And the whole time I had this nagging feeling that there must be a better way. Does a central resource for such Logos exist that I didn’t find yet? If not, what is the way? *star wars music in the background*