[name_m]Just[/name_m] what the title says! Looking for inspiration for more name combinations. I like the idea of a C middle for a future child as, unintentionally, we gave our first two middles starting with A and B.
Some of my favourites collected so far…
[name_f]Clementine[/name_f]
[name_f]Celeste[/name_f]
[name_f]Cleo[/name_f]
[name_f]Cosima[/name_f]
[name_f]Calla[/name_f]
[name_f]Clara[/name_f]
[name_f]Coraline[/name_f]
[name_f]Calanthe[/name_f]
C names have so much potential as you can have a soft C sound such as [name_f]Charmaine[/name_f] and [name_f]Chantelle[/name_f] or a hard C such as [name_f]Catherine[/name_f] and [name_f]Christina[/name_f]. Also, many girls names beginning with K can be spelled with a C instead. So many options! You have some great ones on your list! Have you considered [name_f]Cadence[/name_f] and [name_f]Cordelia[/name_f]?
Thanks [name_f]Emma[/name_f]. I prefer hard C names. [name_f]Cordelia[/name_f] is beautiful but probably too formal for me. [name_f]Cadence[/name_f] isn’t my style.
Some of my favorites are the same as yours, and a few extras 
cleo/clio
clara
clementine
claudia
cate
carys
[name_f]Cora[/name_f]/[name_f]Cara[/name_f]
[name_f]Coralie[/name_f]
[name_f]Carissa[/name_f]/[name_f]Clarissa[/name_f]
[name_f]Clara[/name_f]
Corelle
[name_f]Carys[/name_f]
[name_f]Catherine[/name_f]
[name_f]Candice[/name_f]
[name_u]Courtney[/name_u]
[name_f]Claudia[/name_f]
[name_f]Crystal[/name_f]
[name_f]Chloe[/name_f]
[name_f]Calista[/name_f]
[name_f]Cossette[/name_f]
[name_f]Cassandra[/name_f]
[name_f]Camille[/name_f]/[name_f]Camilla[/name_f]/[name_f]Camelia[/name_f]
Some others with a ‘ch’ (as in chair) sound
[name_f]Charity[/name_f]
[name_f]Chastity[/name_f]
[name_u]Charlie[/name_u]
[name_f]Chiara[/name_f]
[name_u]Chelsea[/name_u]
and with a soft ‘ch’
[name_f]Chanel[/name_f]
[name_f]Chantelle[/name_f]
[name_f]Cheryl[/name_f]
[name_f]Cherise[/name_f]
[name_f]Clementine[/name_f] is definitely one of my favourites! I also adore [name_f]Calliope[/name_f] and [name_f]Cecilia[/name_f] 
I really love [name_f]Clara[/name_f] and [name_f]Calanthe[/name_f] from your list. I also love:
[name_f]Clio[/name_f] (This spelling for the Greek [name_f]Muse[/name_f] of history)
[name_f]Constance[/name_f]
Cadmium
Caelia ([name_m]SAY[/name_m]-lee-uh)
Caesura
[name_f]Caja[/name_f] ([name_u]KAY[/name_u]-juh)
Caliadne
[name_f]Calliope[/name_f]
Calluna
[name_f]Caoimhe[/name_f]
[name_f]Cassandra[/name_f]
[name_f]Cassiopeia[/name_f]
Cataria
Catiana
[name_f]Cecilia[/name_f]
Celosia
[name_f]Cerelia[/name_f]
[name_f]Cerys[/name_f]
Chrysanthe
Codetta
[name_f]Corisande[/name_f]
[name_f]Corliss[/name_f]
[name_f]Cressida[/name_f]
[name_f]Cybele[/name_f]
[name_f]Cypress[/name_f]
[name_f]Cytherea[/name_f]
[name_f]Cyra[/name_f]
Did not realise I had so many C names 
.
[name_f]Cordelia[/name_f] is my #1, but I love lots on your list, especially [name_f]Cosima[/name_f] and [name_f]Clementine[/name_f]
[name_f]Clementine[/name_f] , [name_f]Coral[/name_f] , [name_u]Cassidy[/name_u] , [name_f]Cecelia[/name_f]
Here are some of my most favorite “C” names for girls. I hope there are a couple you like as well.
[name_f]Caroline[/name_f], [name_f]Carolina[/name_f]
[name_f]Catalina[/name_f]
[name_f]Cecilia[/name_f]
[name_f]Cecily[/name_f]
[name_f]Celia[/name_f]
[name_f]Charlotte[/name_f]
[name_f]Claire[/name_f], [name_u]Clare[/name_u]
[name_f]Colette[/name_f] aka “[name_f]Lettie[/name_f]”
[name_f]Cora[/name_f]
[name_f]Cosette[/name_f]
[name_f]Claudia[/name_f], [name_f]Claire[/name_f], clementine, calliope, [name_f]Celia[/name_f], [name_f]Chantelle[/name_f], cadence.
Sorry for any repeats, but here’s a list of C names I like:
[name_f]Clarissa[/name_f]
[name_f]Clarice[/name_f]
[name_f]Calandra[/name_f]
[name_f]Coral[/name_f]
Caribou
[name_f]Candice[/name_f]
[name_f]Caprice[/name_f]
[name_f]Catalina[/name_f]
[name_f]Chrysanthemum[/name_f]
[name_f]Constance[/name_f]
[name_f]Coraline[/name_f]
[name_u]Cassidy[/name_u]
C’s are probably my favorite names:
[name_f]Clara[/name_f]
[name_f]Camille[/name_f]
[name_f]Cordelia[/name_f]
[name_f]Clementine[/name_f]
[name_f]Celia[/name_f]
[name_f]Cecelia[/name_f]
[name_f]Cora[/name_f]
My fav C names:
[name_f]Ceridwen[/name_f]
[name_f]Callista[/name_f]
[name_f]Clarisse[/name_f]/[name_f]Clarice[/name_f]
Claren
[name_f]Cambria[/name_f]
[name_f]Coral[/name_f] / [name_f]Coralie[/name_f] / [name_f]Cora[/name_f]
[name_u]Cordelle[/name_u]
[name_u]Cameron[/name_u]
[name_u]Carlisle[/name_u]
[name_f]Cynthia[/name_f]
You may like [name_f]Cyra[/name_f] ( s sound)
[name_u]Carmen[/name_u]
[name_f]Caitlin[/name_f]
[name_u]Channing[/name_u]
[name_u]Cassidy[/name_u]
[name_u]Cairo[/name_u] ( i prefer it for a boy )
[name_f]Cameo[/name_f]
[name_f]Clea[/name_f] ([name_m]CLAy[/name_m]-a)
My 2 favorites are [name_f]Celeste[/name_f] and [name_f]Camille[/name_f].
I personally love:
[name_f]Caroline[/name_f]
[name_f]Catherine[/name_f]
[name_f]Claire[/name_f]
[name_f]Clementine[/name_f]
[name_f]Cadence[/name_f]
[name_f]Charlotte[/name_f]
[name_u]Calypso[/name_u] or [name_f]Calliope[/name_f]. [name_f]Calista[/name_f] is a runner-up, and does [name_f]Charlotte[/name_f] count?
[name_f]Clara[/name_f] is my very favourite. I also like [name_f]Cleo[/name_f].
[name_f]Ceridwen[/name_f], [name_u]Casey[/name_u], [name_u]Cassidy[/name_u], [name_u]Carter[/name_u], [name_f]Catrin[/name_f], [name_f]Candace[/name_f], [name_f]Chloe[/name_f], [name_f]Carla[/name_f], [name_f]Carly[/name_f], [name_f]Claudia[/name_f], [name_u]Courtney[/name_u], [name_f]Cora[/name_f], [name_f]Cara[/name_f], [name_f]Coralie[/name_f], [name_f]Cordelia[/name_f], [name_f]Calla[/name_f], [name_f]Celia[/name_f], [name_f]Cecilia[/name_f], [name_f]Cynthia[/name_f], [name_m]Cayson[/name_m], [name_f]Callie[/name_f],
C is definitely one of my favourite initials.
[name_f]Catalina[/name_f]
[name_f]Catherine[/name_f]
[name_f]Cassia[/name_f]
[name_f]Callista[/name_f]
[name_f]Ceridwen[/name_f]
[name_f]Cynthia[/name_f]
[name_f]Cinzia[/name_f]
[name_f]Chloe[/name_f]
[name_f]Caroline[/name_f]
[name_f]Carolina[/name_f]
[name_f]Clementine[/name_f]
[name_f]Clementina[/name_f]
[name_f]Clemency[/name_f]
[name_f]Cara[/name_f]
[name_f]Cosette[/name_f]
[name_f]Cressida[/name_f]
[name_f]Claudia[/name_f]
[name_f]Coralie[/name_f]
[name_f]Carys[/name_f]
[name_f]Celeste[/name_f]
[name_f]Cecelia[/name_f]
[name_f]Celia[/name_f]
[name_f]Celina[/name_f]
I don’t know why but I love names that start with C. Some of my favorites
[name_f]Cate[/name_f]
[name_f]Charlotte[/name_f]
[name_f]Clara[/name_f]
[name_f]Claudia[/name_f]
Catia
[name_f]Cassia[/name_f]
[name_u]Chelsea[/name_u]
[name_f]Claire[/name_f]
[name_f]Carolina[/name_f]
[name_f]Celeste[/name_f]
[name_f]Cady[/name_f]
[name_f]Cait[/name_f]
[name_f]Christine[/name_f]
[name_f]Christina[/name_f]
[name_f]Cecily[/name_f]
[name_f]Ciara[/name_f]