Even though Raphina is more exciting on the ball, I'd probably opt for Richarlison of the two, given a choice. Raphina can look a bit lightweight when things aren't going well. And although Richarlison can be/is an annoying cunt, he never hides.
IMO Richardilson possibly suits us more as he can cover Kane and Son, but he wouldn't provide cover for Kuluevski, which is why I think we should look at two - and Raphina is undoubtedly the more skilled and would cover Kulusevski more.
But if we couldn't get both as there is a lot of competition for forwards that's where we might need to look at the likes of Charles De Ketelaere