He will keep them in his inner world and create the kingdoms. He will populate his inner worlds with his slave and blood clones, a peaceful world where every king will be his clone and every queen will be his concubine.
He can give talents like spiritual roots or innate ability inside his inner world. That means he can populate cultivators.
Of course, he doesn't know whether he will ever need them but it won't be bad to have an army that can help you whenever you want.
But, he has decided to make his blood clone look different. He doesn't want his blood clone to have the same faces since it will be bad for the reputation of the kingdoms. But, he will indeed give them an aura.
This aura will allow him to find his clone. It's basically him creating the world of his own inside the Inner World. And, now he can even absorb the universe to gather more energy and send it to the inner world.