SISU is one of my favourite cafés in Milan, it's located near Corso Genova not far from Darsena. It has many seats, so it shouldn't be hard to find a spot, but if you come on a Sunday you might a to wait a bit, especially if you come on a group.

The menu has many coffee options and there are plenty of sweets to try, including many vegan ones.

I find the interior super cozy and the staff is super friendly! I'd highly recommend it and it's certainly one of the best in town. It's not expensive either.