So… I love names, and I love to think and dream far ahead!
Many of you probably know by now… my hubby and I are going with an alphabet theme, ([name]Carol[/name] (me), [name]David[/name] (him), [name]Elena[/name], [name]Felicity[/name]) we decided on [name]Genevieve[/name] if we have another daughter… but just for fun, if we were to have TWO more daughters… what H names do you think go best with [name]Elena[/name], [name]Felicity[/name] and [name]Genvieve[/name]?
[name]Hannah[/name]
[name]Hazel[/name]
[name]Harriet[/name]
[name]Harmony[/name]
[name]Hope[/name]
[name]Halina[/name]
[name]Hillary[/name]
[name]Haley[/name]
[name]Hazel[/name]. 
I would say [name]Helena[/name], but it’s much too close to [name]Elena[/name], unfortunately. 
I love [name]Hannah[/name], too, but I don’t think it goes quite so well as [name]Hazel[/name] does. But [name]Elena[/name], [name]Felicity[/name], [name]Genevieve[/name], and [name]Hannah[/name] would be very sweet. Other ideas:
[name]Hannelore[/name]/Hannelotte (probably far too out-there for you, but I think stylistically they go with [name]Elena[/name], [name]Felicity[/name], and [name]Genevieve[/name] more than just [name]Hannah[/name] does. [name]Both[/name] are [name]German[/name], pronounced HAN-eh-LOT-teh and HAN-neh-[name]LORE[/name]-eh, I believe? I’m not fluent in [name]German[/name] by any means, though, so I could be quite wrong!)
[name]Harriet[/name] (Ahhh! [name]Elena[/name], [name]Felicity[/name], [name]Genevieve[/name], and [name]Harriet[/name] would be perfect, and the nn [name]Hattie[/name] or [name]Etta[/name] is adorable)
[name]Henrietta[/name] ([name]Harriet[/name] goes better, but I do sort of like this, plus, [name]Etta[/name] and [name]Hetty[/name] are pretty cute. Although I can’t think of [name]Hetty[/name] without bursting out laughing, [name]Hetty[/name] Lange on NCIS: Los [name]Angeles[/name] is hilarious!)
[name]Heidi[/name] (too dated for me, and I much prefer [name]Adelaide[/name], but it could work with your girls (and hypothetical girl)!)
[name]Heloise[/name] (way more problematic than just [name]Eloise[/name] would be, though…)
[name]Hero[/name] (total GP. I love the connection to [name]Shakespeare[/name], but I don’t think I could ever use it. I would love to meet sisters named [name]Elena[/name], [name]Felicity[/name], [name]Genevieve[/name], and [name]Hero[/name], though!)
Hesper (I like [name]Vesper[/name] more, but it would be nice with [name]Elena[/name], [name]Felicity[/name], and [name]Genevieve[/name]. And less tragic than literary [name]Hester[/name] (i.e. Prynn).)
[name]Holly[/name] (not as drop-dead-gorgeous as [name]Elena[/name], [name]Felicity[/name], and [name]Genevieve[/name], but still very pretty and sweet)
[name]Honora[/name] (I don’t know why I didn’t think of this earlier! [name]Elena[/name], [name]Felicity[/name], [name]Genevieve[/name], and [name]Honora[/name] are perfect. I love the nn options of [name]Annie[/name] or [name]Nora[/name]. I do like [name]Annora[/name] more, but [name]Honora[/name] would fit your alphabet theme (which, btw, I adore, if I haven’t said so already!))
I love [name]Hadley[/name] and [name]Harper[/name], too, but they’re much too trendy (and unisex) to be paired with [name]Elena[/name], [name]Felicity[/name], and [name]Genevieve[/name]!
[name]Ash[/name]! I think we’re brothas from another motha. haha we think similarly. I [name]LOVE[/name] the name [name]Hazel[/name], like I’m head over heels for it, but our last name is Myhill, do you think they sound bad together? [name]Hazel[/name] Myhill? I also keep coming back to the name [name]Harriet[/name], while on it’s own I don’t particularly like [name]Harriet[/name], I do agree that it is a perfect fit with those sibling names!!! But I don’t think I could live with myself, naming a poor little girl [name]Harriet[/name] lol it’s just too heavy and old for me still. Thank you for all your suggestions if you think of any more let me know!!! (and ps we had never heard of [name]Honora[/name], how do you pronounce that???)
Brothas from another motha, lol. I think you’ve got the wrong gender there, pal. 
Oh, right, I forgot totally about your LN! [name]Hazel[/name] Myhill isn’t the best, but my inclination is to say not a deal-breaker? Hey, it’s better than [name]Peter[/name] [name]Peterson[/name]. Besides, there is a chance that when she grows up, she’ll get married, and it won’t sound so bad. Until then, I don’t think it’d be a serious issue. Plus, it would have been better than my nightmare, marrying a Mr. [name]Bailey[/name]. [name]Hazel[/name] Myhill is loads better than [name]Ashley[/name] [name]Bailey[/name].
[name]Honora[/name] is sort of like oh-NORE-ah/uh-NORE-ah. I think it’s pretty.
[name]Hazel[/name]
[name]Harriet[/name] nn [name]Hattie[/name]
[name]Hadley[/name]
[name]Heidi[/name]