Ada - I like it but it blends in with all the three letter, ends in a names so I would avoid. I love Adaline though which is similar
Eliza - lovely but very popular in my area. I know loads! More Eliza's that Olivia's and Amelia's
Elizabeth (Libby) - I like Elisabeth (prefer this spelling) but not Libby. My favourite nns are Betsy and Beth
Fern - not a fan at all
Freya - pretty but again very popular (though more with 7 plus in my area)
Georgina (Georgie) - lovely. I also like Georgia and Georgiana. Also partial to Georgette and Georgetta too come to think about it, though hate George on a boy, go figure
Harriet (Hattie) - lovely. I love Hattie. Ever so slightly prefer Henrietta
Lara - lovely but there are so many L names about that all blend into one
Maggie - beautiful name
Mara - not a fan
Megan - i really like it, but worry it's a bit dated
Molly - not a fan
Nora - I like it but spelt Norah
Ottilie (Ottie/Tillie) - it's ok
Penelope (Penny/Nell) - like Penny and Nell but can't find the love for Penelope unfortunately
Phoebe - love it, also love the similar sounding Hebe
Sadie - I really like it
Tabitha (Tabby) - not a fan, makes me think of cats too much. I love the similar sounding Talitha though NN Talllie - might appeal as you like Tilly