Men who take their clothes seriously, have their white shirts custom-made. There is a reason for that.
The right shirt is the cornerstone of a man's wardrobe. It is the pristine anchor for a formal suit and the crisp complement to a blazer and a pair of jeans. Think about it, retract the steps of style icons like Gianni Agnelli and J.F.K.
Always remember that you want to have 100% Egyptian cotton with high thread count and ply. Select the style you want, the sleeves, placket, the collar, etc. However, keep the embellishments to a minimum. A custom made white shirt doesn't need pockets, and always to order more than ONE white shirt, because when you're scanning your closet at the crack of dawn for a fast way to look sharp, you'll be thankful that you still have another white shirt, while the other 3 are still at the dry cleaner.