[name]Leandra[/name], perhaps? And you could pronounce it either [name]LEE[/name] andra or [name]LAY[/name] andra.
I think [name]Lesley[/name] --> [name]Leah[/name] doesn’t really make sense, and I’d always wonder why they weren’t just called [name]Leah[/name], especially since they contain the same amount of syllables?
For me [name]Leya[/name] as a nn for [name]Lesley[/name] is a stretch.
Kalena/Kalayna (I love the [name]Alex[/name] Craft Series from Kalayna [name]Price[/name] and while I usually hate spellings like this, I actually really love this one - A LOT.)
Ophelia -> [name]Lea[/name]
[name]Lea[/name]nda
[name]Lea[/name]nna
I can’t think of any others right now but if i do, I’ll be back.
My favorite long form of [name]Lia[/name] is [name]Julianna[/name], but im not sure of a longer form for [name]Leya[/name]. (I prefer the spelling of [name]Leia[/name])
[name]Leandra[/name] works, as well as being exotic. Plus, if you have an accent, names like [name]Juliana[/name] could be pronounced ju-lay-ana. Leyana is also a somewhat trendy option (adding ana to the end of a name).
[name]Leilani[/name] and Leilana could do the job, as well.
I think this has to be spelt [name]Leia[/name] (a la [name]Star[/name] Wars) or she’s going to be called [name]Leah[/name] (lee-a) by everyone she meets. [name]Leilani[/name] or [name]Leila[/name] would be good choices for a longer name.
Avonlea
[name]Azalea[/name]
[name]Eleanor[/name] / [name]Eleanora[/name]
[name]Galilea[/name]
[name]Leandra[/name]
[name]Leanne[/name]
Orleans (a nod to [name]Joan[/name] of [name]Arc[/name])