I’ve been crushing on the name [name]Cosima[/name] recently and I preferably like to have some nickname options for names that have 3 syllables.
I don’t like [name]CoCo[/name]. [name]Sima[/name] is a possibility but I was thinking of Sia? Pronounced Sea-ah. Would it work or it is a stretch?
Thanks in advance! 
I think Sia could definitely work!
Also:
Cosy
[name]Mia[/name]
[name]Mimi[/name]
[name]Mima[/name]
[name]Sisi[/name]
Cosa
[name]Kizzy[/name]
Thank you! 
Wow, I love all of those suggestions! It proves that I’m not very creative in the NN department - I would have never thought of any of them! They’re all fantastic, thank you! 
Definitely adding it to my list now 