There are many different road bike handlebar options available. These include flat bars, aero bars, drop bars, riser bars, and cruiser bars to name a few. The most common road bike handlebars, however, are flat bars (ideal for the majority of bikes), drop bars (popular for a wide portion of road bike users) and finally, aero bars (popular in time trials to increase speed via increasing aerodynamics).
For these cyclists, there are pretty limited types of handlebars to choose. Most of the time, you can choose drop bars for road bikes, and flat bars for MTB bikes.
And for materials, aluminum bars are quite popular, even among pros. On the other hand, carbon handlebars are growing fast in the market, which brings you lighter and stronger bars to maintain better performance during racing.
Helpful handlebar guide. If you guys could make a video to show the tips during choosing a handlebar, that will be great.