I picked "Bethany Marie" somewhat quickly, without thinking. A better choice would have been something that matches the initials of my "real", male, name.
An even better choice, when I think about it too much, would have been to just stick with "Dave". I like my name, and I don't really resemble a woman even when I'm really trying ... and half the time, I just wish that I'd stuck with the name that's been attached to me for almost 50 years.