Plugins are the most common way to add health bars to a Paper server without requiring players to install anything on their own computers.
: Offers extensive customization for passive, neutral, and hostile mobs separately. It includes a settings window accessible via a hotkey (default "B") to adjust scaling and positioning. Health bars 1.19.3
If you are running a modded client or a server that supports mods, these are highly-rated for 1.19.3: Plugins are the most common way to add