Hi !!!
In my opinion
Rae could work as NN for every name that has an R in it. For boys and girls.
Zephyr '
Rae'
Horace '
Rae'
Dorothy '
Rae'
Derek '
Rae'
Clarice '
Rae'
Margery '
Rae'
Rosalind '
Rae'
Tristan '
Rae'
...and so on...
Personally I dislike any nickname eccept for few ones.
Personal Name Lists
https://www.behindthename.com/pnl/125456