Help me choose a nice screen name.

Screen name refers to the name used on the Internet. Because the network is a virtual world, in order to avoid the trouble caused by using real names, the screen name was invented. Screen name generally refers to a virtual name of netizens in the online world. Since the birth of the Internet, the screen name, as a passport for netizens, has broken through the traditional mode of "name" and presented a colorful face. With the rapid development of the Internet and the increasing number of netizens, screen names have become an inevitable and noticeable phenomenon. It is not only a useful "channel" for people to participate in various activities on the Internet, but also a part of netizens' self-extension and recognition.