There is no specific surah/ dua we can refer from the ahadeeth to be read for Allah Ta’ala to grant a baby girl. However, the following dua can be read in order to ask Allah Ta’ala to bestow upon you an obedient and pious child:

"Rabbana hab lana min azwajina wa dhuriyyatina qurrata A'yunin waj'alna lil-muttaqina imama."

"Our Lord! grant us in our spouses and offspring the joy of our eyes and make us heads of the God-fearing." (Surah 25: Ayah74)

Also please recite three time Salawat followed “ Allahumma inni Qad Sammaituha Fatima” then Three times Salawat after every Wajib Salat and inshallah if you are blessed with baby girl then you have to named her “Fatima”

You should leave the matter of baby boy and baby girl to Allah, whatever will be granted by Him will be better, inshaAllah.

And Allah knows best.