Minimal iPhone X stand for your desk. The angle works perfect for responsive FaceID recognition. The front holders have holes to allow sound go through the bottom to the front.
Works also in landscape mode e.g. for watching movies.
I recommend to glue 4 small patches of foam rubber on the bottom side to avoid the mount slipping away when you place your iPhone in it.
Don't own a 3D Printer? No problem, I'll make it in your desired color and material. Just upload the STL file on my 3D printing page: http://www.hancon.ch/3d-druck-expressfertigung/