The popularity of suit styles for men can vary depending on current fashion trends and individual preferences. However, here are some classic and commonly popular types of suits for men:

1. Single-Breasted Suit: This is the most common type of suit, characterized by a jacket with a single row of buttons down the front. It can be worn with two or three buttons, and the lapels can be notch, peak, or shawl style.
2. Double-Breasted Suit: These suits feature a jacket with two parallel columns of buttons on the front. They often have peaked lapels and a more formal, structured look. Double-breasted suits have experienced a resurgence in popularity in recent years.