Pragg or Gukesh?
Prag. He needs to sharpen a bit to be more consistent like Nakamura or Karpov in their prime.
Gukesh has lot to cover in rapid/blitz. he was lucky he won in rapid as he prepared his moves in advance. Unlike the strong intuitive knowledge, one should have of chess to be consistently in top in these formats. Most of the greats including Anand have it and Prag and Arjun are almost there.