I strongly doupt that she would ever be able to tell apart two regular parasistes like Uragami never found differences beween them - with one exception:

Gotou is different because he contains several parasites and for this reason has a ways stronger signal. Sleeping Migi is different too, he has a weaker signal, but still Kana couldn't tell that Migi was sleeping when Shinichi told her everything.

But: Getting stronge, her powers could reach the point when she even sence human's brain waves and than she'd become able to tell apart Migi/Shinichi from regular parasytes and maby even tell apart Shinichi from other human ...

because of the parasite cells in his body and brain

I strongly doubt that she would ever be able to tell apart two regular parasistes like Uragami never found differences between them - with one exception:

Gotou is different because he contains several parasites and for this reason has a way stronger signal. Sleeping Migi is different too, he has a weaker signal, but still Kana couldn't tell that Migi was sleeping when Shinichi told her everything.

But, getting strong, her powers could reach the point where she could even sense human's brain waves and then she'd become able to tell apart Migi/Shinichi from regular parasites and may even tell apart Shinichi from other humans...

because of the parasite cells in his body and brain.

I strongly doupt that she would ever be able to tell apart two regular parasistes like Uragami never found differences beween them. Gotou is different because he has a ways stronger signal for obvious reasons. Sleaping Migi is different too, he has a weaker signal but still Kana couldn't tell that Migi was sleeping when Shinichi told her everything.
But: Getting stronge, her powers could reach the point when she even sence human's brain waves and than she'd become able to tell apart Migi/Shinichi from regular parasytes (But could not tell if it were Uda and Joe).

I strongly doupt that she would ever be able to tell apart two regular parasistes like Uragami never found differences beween them - with one exception:

Gotou is different because he contains several parasites and for this reason has a ways stronger signal. Sleeping Migi is different too, he has a weaker signal, but still Kana couldn't tell that Migi was sleeping when Shinichi told her everything.

But: Getting stronge, her powers could reach the point when she even sence human's brain waves and than she'd become able to tell apart Migi/Shinichi from regular parasytes and maby even tell apart Shinichi from other human ...

because of the parasite cells in his body and brain