[name_f]Lyra[/name_f] [name_f]Scarlett[/name_f] - keep! [name_f]Lyra[/name_f]'s beautiful, and the sassy, familiar [name_f]Scarlett[/name_f] pairs so well with it.
[name_f]Lydia[/name_f] [name_f]Elise[/name_f] - also keep! [name_f]Lydia[/name_f] is a huge favorite of mine and I’d love to see it get used.
[name_f]Margot[/name_f] [name_f]Elisabeth[/name_f] - another keep! I have really been crushing on [name_f]Margo/name_f lately, and [name_f]Margot[/name_f] [name_f]Elisabeth[/name_f] is gorgeous.
[name_f]Anneliese[/name_f] [name_f]Sophia[/name_f] - keep! I adore both of these names, and [name_f]Anneliese[/name_f] [name_f]Sophia[/name_f] sounds beautiful.
[name_f]Josephine[/name_f] [name_f]Delilah[/name_f] - toss. [name_f]Josephine[/name_f]'s gorgeous, but I find it a bit boring as a MN, and I don’t see the appeal in [name_f]Delilah[/name_f].
[name_f]Anastasia[/name_f] [name_f]Juliet[/name_f] - toss. Beautiful names, but [name_f]Anastasia[/name_f] is already too frilly for me, and [name_f]Anastasia[/name_f] [name_f]Juliet[/name_f] is just over-the-top frilly. Still a nice name–I’m just getting picky because you have so many beautiful options. 
[name_f]Mariah[/name_f] [name_u]Eloise[/name_u] - toss. I think. [name_m]Just[/name_m] because [name_f]Mariah[/name_f] seems a little more trendy/dated (?) than all your other options, and it doesn’t seem to fit in quite so much as the others. [name_f]Mariah[/name_f] [name_u]Eloise[/name_u] is a GORGEOUS combo, though. I love it. (I only say dated because I seemed to know a lot of people who were using/liking [name_f]Mariah[/name_f] about 10-15 years ago, so it sort of seems dated in my area. Maybe not so in other places, though?)
[name_f]Farrah[/name_f] [name_f]Avis[/name_f] - toss. [name_f]Farrah[/name_f] is just not my thing, and I don’t like [name_f]Avis[/name_f] with it. Sorry.
[name_f]Calista[/name_f] [name_f]Maeve[/name_f] - toss. I want to like it–I just can’t get excited about it. I like [name_f]Caroline[/name_f] or [name_f]Calliope[/name_f] much better to get to [name_f]Callie[/name_f].
[name_f]Nora[/name_f] [name_f]Helene[/name_f] - keep! I’m not a massive [name_f]Nora[/name_f] fan personally, but [name_f]Helene[/name_f] is one of those names that always has me swooning, and [name_f]Nora[/name_f] [name_f]Helene[/name_f] is gorgeous. I’m so happy to see [name_f]Helene[/name_f] on other people’s lists!
[name_f]Lilia[/name_f] [name_f]Adele[/name_f] - keep! I like [name_f]Lillian[/name_f], [name_f]Liliana[/name_f], etc., more than [name_f]Lilia[/name_f], but it’s such a pretty name, and [name_f]Adele[/name_f] has become one of my absolute favorite names ever, and it has me grinning just seeing this combo. I think it’s my favorite on your list! I’m not sure the flow from [name_f]Lilia[/name_f] to [name_f]Adele[/name_f] is spot-on, but I honestly don’t even care–[name_f]Lilia[/name_f] [name_f]Adele[/name_f] is gorgeous!
[name_f]Lilia[/name_f] [name_f]Adele[/name_f] and [name_f]Anneliese[/name_f] [name_f]Sophia[/name_f] are my favorites. 
Good luck!