Winter complete wheels / rims

Hello, I drive a Kia Ceed GT-Line 1.5 T-GDI in black and have to take care of winter tires. At the moment the original summer tyres 225/45 R17 are on it and in the vehicle license only the ones are in it. From the COC papers I don’t get smart, but should be 17 inches again. 18 inches probably don’t go and is also too big in my opinion, 16 inches is too small for me again. I have already searched for a couple of times as good as the whole forum. Pictures of a Ceed with not original rims to see. But unfortunately find only ProCeed ́s. What do you have for rims on your Ceed? Also a few pictures, because I can’t always imagine what this looks like on the car when you only see the rim. Greeting Niklas