also in my experience as a fisherman, green sunfish spawn in a similar fasion. kind of a mix of substrate spawning and mouth brooding cichlids. The pair lays their eggs in a pit first, (like mouth brooders) but they just leave them there and guard them like substrate spawners.
I performed DNA electrophoresis on Texas cichlids, bass and sunfish back in 1995 and found that the sunfish and Texas genome were very similar (only a few bands different) and that the bass wasn’t too far off either.