I would say Ava Lily would be my favourite from your list. Otherwise, Hannah Lily or even Lily Hannah sounds nice too. I think if you were to choose Hollie as a first name and spelt like that, your child is going to forever be telling people how to spell it because people will assume Holly to be spelt with the y.
Nice name choices though and go beautifully with your other girls' names.
Ava Lily- lovely but I'd definitely avoid Ava as a first name with an Evie already Lily Ava- lovely again Hollie Ava- Holly is lovely but the spelling Hollie just looks wrong Ava Hollie- again, I'd avoid Ava as a first name
I love Hannah too. I think Hannah Lily would be my choice out of all the names.
With a little inspiration, imagination and forward planning, a day involving screaming hordes of children descending on your home in search of fairy bread can be fun.