Thank you very much, entry-newspaper.
I hope you get the visuals that you are after. Fingers crossed that not a lot more exploration is needed.
Two mini tip:
If you need to have the particles sit on the sphere with zero radius, I suggest having a smaller sphere as a collider and the full size as a Sphere without a collider. This allows for a certain amount of traveling of the spheres without swallowing the particles.
CV4_2025_drs_25_PAcs_01.c4d
Another tip: you could create a Kill-Sphere with a Sphere Field inside the sphere.
CV4_2025_drs_25_PAks_01.c4d
All the best