You may say 'shiroi kitsune,' written: 白い狐
kitsune
Kitsune
Kitsune - 孤
"Byakuren" is how you say "White Lotus" in Japanese.
Byakko
chisai kitsune
kage kitsune
ko gitsune
A white fox is 'un renard blanc' in French.
inazuma no kitsune you do realise this will make absolutely no sense to a Japanese
雪狐 Yuki kitsune