One that isn't going to embarrass them when they are older.

Any name that won’t embarrass the child at school

Sally 😎
For a son I don’t know

There is no best.
A good name should have a positive meaning, something that tells the kid they are loved and wanted in the world, and something not to difficult to live up to.
It should be easy to say and spell, and hard for school kids to make fun of.

Rose and for son apple 🍏🍎

Reptile!!! Works for both a boy or a girl.

Daughter- Germany
Son- France