Charlotte - nice. I like the nn
LottieBeatrice - like it though I probably wouldn't use it myself
Elinor nn
Nell - I like
Elinor although this is one of my less-prefered spellings. I don't care for
Nell.
Rudolph nn
Rudy -
Rudolph makes me think of reindeer.
Rudy is nms but is a suitable nn for
Rudolph.