At the (American) daycare I work in, there is a pair of (British) sisters named A|pha and Ophe|ia! I think their names are so interesting. I’ve been meaning to ask their mom the stories of them… but I haven’t gotten to do their handover in a few sessions. 
Because my mom won’t play along with my name games and is too busy cutting carrots… what would you berries name a little sister or brother to two girls named A l p h a and O p h e l i a?
Ooh, I’ve never seen A as a name in real life!
For fun, I’ll do another vowel so…
[name_m]Isidore[/name_m] // [name_f]Undine[/name_f]
or to continue the ‘ph’:
[name_m]Phineas[/name_m] // [name_f]Zephyrine[/name_f]
B:
[name_m]Odyssey[/name_m]
[name_m]Odysseus[/name_m]
[name_m]Ulysses[/name_m]
[name_m]Theophilus[/name_m]
[name_m]Marshall[/name_m]
G:
[name_f]Eurydice[/name_f]
[name_f]Elowyn[/name_f]
[name_f]Eilonwy[/name_f]
[name_f]Sophia[/name_f]
[name_f]Francesca[/name_f]
[name_f]Ivy[/name_f]
[name_f]Juniper[/name_f]
[name_f]Kate[/name_f]
[name_m]Kit[/name_m]
[name_f]Elowen[/name_f] OR Ɛlvᴀ
[name_m]Ilani[/name_m] OR [name_m]Ilan[/name_m]
[name_m]Romeo[/name_m]
[name_m]Maximilian[/name_m]
[name_m]Saint[/name_m]
[name_m]Leander[/name_m]
[name_m]Paladin[/name_m]
[name_f]Hero[/name_f]
[name_m]Lancelot[/name_m]
brothers:
magnus
sisters:
calypso
coco
hero
pandora
persephone
tallulah
xanthe
Such an interesting sibset!! 
[name_f]My[/name_f] Top picks for a brother are:
[name_m]Aleph[/name_m]
[name_m]Raphael[/name_m]
[name_m]Othello[/name_m]
[name_m]Daphnis[/name_m]
Amraphel
[name_m]Theoden[/name_m]
And for a sister:
[name_f]Ethel[/name_f] / Ethella
[name_f]Thallo[/name_f]
[name_f]Delphi[/name_f] / [name_f]Delphine[/name_f]
[name_f]Daphne[/name_f]
[name_f]Althea[/name_f]
A1pha is intriguing, though I’ve encountered a couple of little 0phe1ias!
For a brother…
A1pha, 0phe1ia and [name_m]Perseus[/name_m]
[name_m]Or[/name_m]
A1pha, 0phe1ia and [name_m]Dante[/name_m]
For a sister…
A1pha, 0phe1ia and [name_f]Cressida[/name_f]
or
A1pha, 0phe1ia and [name_f]Saga[/name_f]
[name_f]Sappho[/name_f]!
Ooh they are a fun sibling set!
I think to continue the ‘ph’ theme I would go
[name_m]Phineas[/name_m] + [name_f]Nephele[/name_f] 
Sigma / [name_f]Persephone[/name_f]
[name_m]Hamlet[/name_m] / [name_m]Omega[/name_m]