My sister named her female dog Griffynn. We usually call her Griffy, Griff, Giffy, etc.
It is a lovely name for male or female!
A name for a dog is very important in a lot of ways, it's their name for the rest of their life. It sort of makes you view them a certain way, especially for other people who do not know your dog. So keep searching names if you aren't truly satisfied, you haven't found the right one in my opinion! I think you should be very excited for the name your going to name your dog.