Is there a way to create a soul.
No, you can fragment your own to make another soul, but the soul is not “new” it’s just a fragment of your own, however if you put it in say a servitor then it gives that servitor life and makes them into a legitimate being that becomes it’s own person and for them they would be considered a new soul.
But other than that creating a soul is not really something you can do out of nothing
Yes, it is apparently possible, at least according to some.
I believe @Empress_Arianna mentioned creating a soul under the tutelage of Set.
However, it is not something that can be done easily or simply. It requires a lot.