Can someone change these names a bit?

I would like to use one of these names as a nickname for the Ps5, but the problem is that they are all taken. Could any of you change that a bit? I'm not good at that hehe.

Kyasha, Sephira, Mahiru, Shinoya

And if you could think of any more spontaneously you could write the letters, they should also be Japanese or in the same style / length as the one I have here. Please only made up because most of them have already been used

Hmm maybe.

Kayasha
Hiruma
Shinoko
Kiyako
Hirumaru
Shikahiru

Somehow something like that.

But probably short names are already taken-
Maybe it helps to add a -Kun, -San, -Chan, -Senpai, or whatever!

Shikahiru goes thanks, the others are all already taken, but do you maybe still know which ones with k like Kiyako sounds damn good

Hmm maybe.

Kayarin
Kyaro
Kururinko
Kanako
Kokonocha
Kanami
Kekumin

Or so?

Are all already used, thanks anyway for all the names

Awesome.
As I said, maybe it also helps to add a -Kun, -San, -Chan, -Senpai, or whatever!

Does Kyasha-S / san have to be written in upper or lower case?

I would capitalize it, but it doesn't really matter.
By the way, San is used for women and men, but most non-Japanese understand it to mean women. (Although basically Miller-San can be Mr. Or Mrs. Miller)
Kun only for men.
Chan is belittling. Often for small children or girls, but also for boys who just feel cute.
Senpai for "older" or "more experienced" people
In case you couldn't do anything with the endings.

Thanks