Is the name Shachar recommended?

Shalom,

The name Shachar is not recommended.

Sources: See the book Vayikra Shemo BeYisrael (page 233), in the name of Rav Chaim Kanievsky zt"l, that one should not call a child Shachar, neither for a boy nor for a girl.

With blessings,

Hillel Meirs