Hi there! Milan is a fantastic city with so many picturesque spots (https://milanphotographer.com/). Here are a few recommendations for great photo locations:
Duomo di Milano: The Milan Cathedral is a must-see. The intricate facade and stunning views from the rooftop make for amazing photos.
Galleria Vittorio Emanuele II: Right next to the Duomo, this historic shopping gallery has beautiful architecture and is perfect for stylish shots.
Sforza Castle (Castello Sforzesco): This medieval fortress is surrounded by beautiful gardens and makes for a lovely backdrop.