I love
Marnie. I discovered it in ninth grade when I read a book called
Marnie. It's very quiet, strong, and dark (I keep coming across those types of names on here today).
I don't like
Marni-- names that end in just i, legitimately or not, look too cutesy. Like you'd expect the owner to dot it with a heart.
Marna is nice. I like names with that sort of sound, like
Morna,
Maura, etc.