I thought about this topic for a while and discovered my preferences.
Core HP Management:
First Aid: Make a Wisdom/Heal check to administer first aid on a dying character or a dying character can make a harder Constitution/Endurance check to stabilize themselves.. Success means the dying character heals back to 0 HP and is disabled.
Available to: All characters
Rest: Rest for 8 hours of sleep or more), you recover 1 hit point per level. Resting for 24 hours double that. Being tended to doubles that (trained if by a trained healer).
Available to: All characters
Brew Potions: Craft healing potions in a lab that can be consumed for HP gain.
Available to: Any character trained in the appropriate crafting skill or with the appropriate theme.
Collect Herbal remedies: Search for plants that can used to treat injury or restore vigor.
Available to: Rangers and any character trained in the appropriate terrain skill.
Cure X spells: Casting spells that magically heal wounds and restore vitality.
Available to: Bards, Clerics, Druids, Paladins, Priests, and Rangers
Song of Heroism: A special song that grants allies with temporary hit points.
Available to: Bards and people with the minstrel theme
Lay on Hands: Touch another character to heal their wounds.
Available to: Paladins
Inspiring Word: Call out inspiring words to a wounded ally to grant them temporary hit points
Available to: Warlords
Rage: Get angry and get a bonus to Str and Con (which then grants bonus hit point for the increase Con).
Available to: Barbarians
Non-Core Module Character Options
Battlerage: Gain Temporary HP when hit
Available to: Fighters
Wholeness of Body: Heal your own HP via meditation
Available to: Monk
Campaign based Module Options
Healing surges: Character get Healing surges. Whenever they are healed, they spend a healing surge.
Second Wind: A character can dig into their reserves and heal themselves in battle.
Half Meat: Once a character is dropped to lower than half their maximum HP, they cannot heal greater than half their max HP except by magic or bed rest.
All Meat: Only magic and bed rest recovers hit points
Half Stamina: A few minutes of rest recovers a character back to half maximum HP.
All Stamina: A few minutes of rest recovers a character back to maximum HP.
Stamina & Wound points: One of those
Reserve Points: One of these
Core HP Management:
First Aid: Make a Wisdom/Heal check to administer first aid on a dying character or a dying character can make a harder Constitution/Endurance check to stabilize themselves.. Success means the dying character heals back to 0 HP and is disabled.
Available to: All characters
Rest: Rest for 8 hours of sleep or more), you recover 1 hit point per level. Resting for 24 hours double that. Being tended to doubles that (trained if by a trained healer).
Available to: All characters
Brew Potions: Craft healing potions in a lab that can be consumed for HP gain.
Available to: Any character trained in the appropriate crafting skill or with the appropriate theme.
Collect Herbal remedies: Search for plants that can used to treat injury or restore vigor.
Available to: Rangers and any character trained in the appropriate terrain skill.
Cure X spells: Casting spells that magically heal wounds and restore vitality.
Available to: Bards, Clerics, Druids, Paladins, Priests, and Rangers
Song of Heroism: A special song that grants allies with temporary hit points.
Available to: Bards and people with the minstrel theme
Lay on Hands: Touch another character to heal their wounds.
Available to: Paladins
Inspiring Word: Call out inspiring words to a wounded ally to grant them temporary hit points
Available to: Warlords
Rage: Get angry and get a bonus to Str and Con (which then grants bonus hit point for the increase Con).
Available to: Barbarians
Non-Core Module Character Options
Battlerage: Gain Temporary HP when hit
Available to: Fighters
Wholeness of Body: Heal your own HP via meditation
Available to: Monk
Campaign based Module Options
Healing surges: Character get Healing surges. Whenever they are healed, they spend a healing surge.
Second Wind: A character can dig into their reserves and heal themselves in battle.
Half Meat: Once a character is dropped to lower than half their maximum HP, they cannot heal greater than half their max HP except by magic or bed rest.
All Meat: Only magic and bed rest recovers hit points
Half Stamina: A few minutes of rest recovers a character back to half maximum HP.
All Stamina: A few minutes of rest recovers a character back to maximum HP.
Stamina & Wound points: One of those
Reserve Points: One of these