Hello and welcome to Just Answer!
Are you sure the leak isn't coming from the weep hole under the thermostat housing?
Yes it is coming out of weep hole. How do we repair
That weep hole is for the water pump. When coolant leaks from the weep hole, it means your water pump is leaking and will need to be replaced. They have this weep hole so the coolant won't leak past the water pump bearing and into the engine. Don't plug this hole!!
I hope this helps, let me know!