Yeah sort of like that. I only need HP Bars for the boss and the player's followers. They all have predetermined spots they will be as well and they will just stand there firing projectiles at each other while the player wanders the map and solves the puzzles. I want the HP of the followers to be visible as well so the player knows how much health their followers have left. Here is an image of a test setup:
The elephant is the boss. The dog, kitsune, and woman are the player's followers. They move to the spots they're in now and fire projectiles at the boss while the boss fires their own projectiles at the followers. They don't move from there, only the player will. My current setup is the HP bar above the woman is just an event placed a tile above her that changes based on that actor's HP. It works but is a bit messy to track the HP properly. I would love something more streamlined. I tried to use Visustella's Variable Gauges, but if I put it in a position, it moves with the screen so won't stay above an event.