I want to change my name and help me choose a better name.

This name is very nice and Korean. This sounds good.

Guo Xuanru's antiques are a bit tacky.

Guo Jinyu sounds a bit like a goldfish who doesn't like it.

Guo Yiling, if you can't find the middle word, it means it's not a common word. Such a name is troublesome. In the future, others will often mispronounce, and it is difficult to find a bank card or something.