You can easily fix the visible seam in Sculpt Mode, using the Smooth Brush and some other brushes.
To greatly speed up retopology after fixing the seam I can recommend Quad Remesher:
You can easily fix the visible seam in Sculpt Mode, using the Smooth Brush and some other brushes.
To greatly speed up retopology after fixing the seam I can recommend Quad Remesher: