I also like this suggestion of [name]Layne[/name] or [name]Laine[/name] for a fn with [name]Laney[/name] or [name]Lainie[/name] or [name]Lainey[/name] (depending on how you spell the fn) as a nn. Obviously I’m partial to the -ey as my daughter is [name]Laney[/name]. [name]Lane[/name], this spelling, is completely masculine.
I like [name]Laney[/name] by itself as an FN - depending on last name. I don’t understand why people who love the nn version have to give their children the extended version when they’ll never actually be called that. I find it confusing. If you love it as a name, use it!
I don’t think [name]Lane[/name] is completely masculine. That’s a weird thing to say considering it is simply a word.
Uhm I’d definitely call her by her full name as well. But I wouldn’t want to have [name]Lainie[/name] on my birth certificate.
[name]Helena[/name], [name]Elena[/name], [name]Delaney[/name], or [name]Elaine[/name].
[name]Elena[/name]. Not a fan of these [name]Alaina[/name], [name]Elaina[/name] spellings at all. [name]Even[/name] if they’re legit they look like they’re spelled phonetically and are really trendy imo. Traditional [name]Elena[/name] is beautiful 
I have never heard [name]Elena[/name] pronounced eh-[name]LAY[/name]-na in real life. Only [name]EL[/name]-eh-na. And [name]Elaina[/name] and [name]Alaina[/name] are pronouced ee-[name]LAY[/name]-na and ah-[name]LAY[/name]-na - not like [name]Elena[/name].
[name]Alaina[/name] is my favorite from your list. It’s so spunky and cute and feminine.