Hello and welcome to BYC!
Adorable babies!
Definitely follow the link to our What Breed and Gender forum that @Debbie292d has left for you above and start a thread there. Take photos of each chick, close ups. They are pretty young yet and you may need to wait until they start molting in their adult feathers.
Best wishes with your flock!

Adorable babies!

Best wishes with your flock!