Aftermarket rims can be in 5x112 pcd or 5x100 pcd , even multifit 5x100/5x112 pcd , oem only come in 5x112pcd or 5x100 pcd, it's all down to offset really the lower the offset the less likely they will fit without issues.
But as its B7 you'll need 5x112 pcd or multifit option .
On an 8j an ET35 will be a good option , an 8.5j on an ET35 better still , but if you start getting below ET33 on either width rim you can run into issues with bodywork contact .
Or , if you're not fussed about the stance you could stick with et43 /45 etc but stear away from going beyond ET48 or you'll have issues and may need spacers, so kinda going in a circle with them.