My first child is Sameeha, need name for second child starting with S , should have Quranic reference, sweet simple to pronounce and with strong meaning. kindly suggest

Here is a list of good Quranic names for girls starting with "S":
Sabrah means patient.
Safaa is a place in Mecca visited during Haj.
Saiha means a woman who fasts a lot.
Sajidah means a woman who prostrates to Allah often.
Salihah means a pious and virtuous woman.
Samaa means high-status and exalted.
Sakina means source of peace and tranquility