A nice two-character nickname should be unique. For girls, it is best if the two characters are the same. Plagiarism is not allowed...

Mumu Momo (Momo) Ding Dingzao (sound zhuizhui) Luoluo Doudou or Doudouqianqian Yiyi Qingqinglianranransisi spider spider Zhenzhen zhenzhen Tangtang leaks and Gefeifei (feifei) Duan Duan

炂炅jiong Ask about Dui Dui Zhan Guaguacaicai Xuanxuan diao

Is it this kind of thing? If you can't stand it anymore, just read it using the dictionary pinyin checking method. Whichever one feels easier to read, just choose a word. What I need to remind you is that these two similar words are very friendly when read, but if you want to have more personality, Not easy!