Pic #1 looks like a African Peacock cichlid.
Pic #2 looks like a Geophagus cichlid
Pic #3 looks like a Peacock cichlid
Pic #4 looks like a Mbuna African cichlid.
1 looks like it could be a young eureka red peacock.
2 I’m not sure of.
3 looks like an “orange blotch” peacock.
4 looks like a red zebra (the variant covered in black spots).
It is always a crap shoot buying from a mixed tank which are often filled with hybrids. The last one looks like it may have some marmalade fuelleborni in it.