Which Alloys for 2013 A4 S Line

Hi everyone. I'm pretty sure this has probably been asked a thousand times but I've tried my best to scour through and find the answers but im still not sure.

I need advice in which OEM wheel I can fit onto my 2013 A4 S-Line. I recently had the car wrapped in a yellow colour and the standard silver wheels just dont do it justice. It has to be black wheels.

I'm trying to find OEM Audi wheels that will be a direct swap ideally in 18" or 19" size. I originally wanted the RS3 wheels but the bore sizes don't match. My next choice is a set from the RS6 but I'm not sure about the offset and how they would sit on the A4. I'd like them to sit almost flush while allowing free movement of the suspension as not to hit the arch. Not a fan of spacers so offset is important.

Does anyone have any recommendations of what to go for. I dont mind aftermarket but needs to be from a reputable company.

Thank you in advance for your help.

Shu