How about names of various enemies in both Dragon ball and Dragon ball Z
The reason for this would be to represent the timeline of the dragon ball universe as a whole and give credit to some of Akira Toriyama's most interesting arcs.
Some suggestions for the names:
1. Red Ribbon
2. Emperor Pilaf
3. King Piccolo
4. Ginyu (force)
5. Dr. Gero / android
6. Babidi / majin
did you actually forget cell!
The saiyan saga? Aka nappa saga.