What nickname will you give her?
I probably won’t, but maybe [name_u]Ara[/name_u]!
Lara
Ella/ Bella(?)
Layla(?)
I probably wouldn’t give her a nn but if I did, it would probably be [name_f]Lara[/name_f] or El/Elle
I would call her [name_f]Elara[/name_f] and the preferred nn she would wanna go by.
Lare
[name_u]Ari[/name_u], but I’d probably just call her [name_f]Elara[/name_f]
i would probably call her elri
[name_f]Ellie[/name_f] 
Larrie!!!
[name_f]Elle[/name_f] 
[name_f]Ellie[/name_f] (probably )
[name_f]El[/name_f] or [name_f]Elle[/name_f]
[name_f]Lara[/name_f]
[name_u]Ara[/name_u]
[name_f]Ella[/name_f]
[name_f]Lari[/name_f]
Definitely Lar or [name_f]Lara[/name_f]!
Probably, instinctively, [name_f]Ellie[/name_f]. [name_u]Or[/name_u] maybe [name_m]Larry[/name_m]? 
I tend to call my closer friends cutesy versions of their names, but not usually out loud, and not usually as a “nickname” but more of an endearment. I’d probably call her (in my head) Elari, [name_f]Lari[/name_f], [name_f]Ellie[/name_f]. Out loud, I likely wouldn’t give her a nickname unless she wanted one.
i’d probably just call her el or ellie.
I wouldn’t unless she wanted me to but probably [name_u]Ara[/name_u] or [name_u]Ari[/name_u], if she asked for one.
[name_f]Lala[/name_f] (if she’s a girly girl) or [name_m]Lars[/name_m] if she’s more of a tomboy.
If anything, maybe Ella… or [name_u]Ari[/name_u]. I’m not a huge Ellie/Elle fan, nor [name_u]Ara[/name_u], and while I like [name_f]Lara[/name_f], I don’t love it enough to purposely try calling someone it. haha. If I instigate a nn, it’s usually to lengthen a name rather than shorten it (I’ve called friends named [name_m]Ben[/name_m], [name_f]Carol[/name_f], and [name_f]Sarah[/name_f] “Benedetto”, “Carolina”, and “Serafina”, etc.!), and I can’t really think of anything that’d naturally work to lengthen [name_f]Elara[/name_f]. It feels rude to me to give someone a nn without someone else already calling them that, but maybe that’s not necessarily the case between BFFs…