The fashion that dominated for eighteenth century men: suits. The jackets had coat skirts (full and fancy) and the trousers were short. In warm seasons the trend was to wear silk, and limit embroidery. For cooler seasons the popular fabric was wool.
When Louis XVI and Antoinette took the throne a popular style was to have the waistcoat show a bit. During their reign it was more stylish for men to dress in darker colors (Sorry I know you all love those baby pink silk ones!)
If you are interested in dressing the part of a fashionable male I have stumbled across a new store that sells such garments. It is called Pimpernel Clothing and can be found here. Take note that they are offering domestic and international free shipping! If you are not looking for fashionable menswear, check out their historical playing cards!!