Hi
Perrine !!!
All these names are masculine in my opinion.
I usually dislike nicknames but if I have to use them I would use
Ronnie,
Charlie and
Frankie for boys while something like
Vera,
Lottie and
Fanny for girls.
About
Roni:
I saw it the first time in the book 'The Hilltop' by Assaf Gavron (2013) set in the West Bank.
It was used by a male (
Roni Cooper). If I see the meaning I find
Shiri much more evocative because 'The Song of Songs' is in Hebrew '
Shir Ha-Shirim', a beautiful link.
Personal Name Lists
https://www.behindthename.com/pnl/125456