From your list, I think these ones work with Elara Maeve:
Astrid → starry but grounded, bold but familiar
Althea → distinctive but familiar thanks to Thea, Athena etc.
Mabel → cosy and sweet but full of charm and energy
Sayla → bright and pretty
Vienna → warm and lovely, stylish and sweet
Vaida / Veda → cool with a bit of edge but warmth too
Ones that don’t work for me:
Alina → the letters muddle for me a bit (El/Al, -la-/al)
Aubrey → a bit different in style / american vibes (could be a middle tho)
Calina → just find it a teeny bit awkward compared to airy Elara for some reason
Clarise → I think Clarice could work but Clarise looks torn between Clarice and Clarisse for me?
Freya → maybe it’s my UK perspective but I know so, so many Freyas compared to Elaras? Not a bad name though - sweet, solid and plenty of history to it
Liana → blends a bit with Elara
Aviva → however, I’m wondering if it only feels awkward to me because it’s a big insurance company where I am?
A few others I’d throw in:
Freda
Tallulah
Vita
Adella
Merryn
Colette
Xanthe
Bronwen