1: Looking for an unequal partner to merge, into a larger one,
2: OR: Looking for an EQUAL partner to form a dual Herbig Haro star forming system. with two jets etected from the stellar center and connecting both black holes , also called "Bowshocks".
This is postulated the mysterious red hotspots JWST showed us at the farest level. later also found as peanut formed hotspots ( being the first dual Herbig Haro systems)
See : see: Primordial Black Holes and dual Herbig Haro Effects.
poster below:
See also: self acceleted Tadpole BHs pushed by self produced plasma tails.
Even in te recent universe, Herbig Haro star forming systems are present by smaller black holes. like inside the Spire Eagle nebula.
The super symmetric entangled Raspberry Multiverse