After central topological merging with larger galaxies, the 2e generation and larger (3,4, etc) GABHs take a so called Mass-Galactocentric Distribution.
A small distance between those clusters create Dwarf Clusters.
See:
Dwarf Galaxies and their relation with Dark Matter based Galaxy Anchor Black Holes (GABHs).
and:
Mass Galactocentric Distribution for each galaxy.