NPCs

Merchant - Sells various items, mostly consumables, usually for souls, but, depending on the setting, will also accept coins. There are a few subtypes to this type of NPC as well.

Merchant, Spell - Sells spells, special rings, various catalysts, and misc magical items.

Merchant, Miracles - Sells various Miracles, talismans and chimes, special rings.

Merchant, Pyromancies - Sells various pyromancies.

Traveler - Aimless wanderer, can give you useful random items or consumables, provide information or lore, and will usually disappear from the bonfire or waypoint upon leaving and then returning.

Blacksmith - Repairs/upgrades/infuses weapons and armour, occasionally has weapons and armour to sell. Also sells various blacksmithing tools. subtypes also apply

Blacksmith, Magic - Repairs/upgrades Magical weapons, may also sell basic catalysts, in addition to everything in the basic description. May also convert current weapon into that of a Magic type

Blacksmith, Divine - Repairs/upgrades Divine weapons, may also sell basic talismans and chimes, in addition to everything in the basic description. May also convert current weapon into that of a divine type

Blacksmith, Fire -

Blacksmith, Lightning -

Quest Giver - NPCs that gives quests, may also give rewards for completing said quests. Quests might range from a simple fetch quest, to a story arch.

I encourage all of you to add/improve some NPC types as well