My boy is actually a GIRL! So please help with names🙏

Josie • Cosmetologist ✂ Nature lover🌲🌻 NLB♡ Matix Roy💙Sienna Colleen🌸 & baby due May 20th

At my anatomy scan I found out my little boy is actually a little girl 😅 We had a name for him already so Im really struggling. Big brothers name is matix