Subclasses for each class, not much to explain.
Warrior Subclasses- Paladin (has a large shield and/or sword–usually tanks damage and can cast simple healing magic/spells), Berserker/Barbarian (has large dual/single axe or hammer-- deals lots of damage and tanks but is vulnerable to spells/magic), Lancer (has a large lance and maybe a shield–charges with lance for crowd control)
Hunter Subclasses- Assassin (has throwable daggers which use up stamina instead of MP, maybe can poison??) , Rogue (has dual daggers/machetes and usually does quick slash combos), Archer (has a crossbow/bow- simple subclass not much to it)
Mage Subclasses- Priest (specialises in healing magic and can use large area healing magic), Binder (uses debuff/buff spells mostly–stuff like paralysis, more str, more int, more defence etc), Summoner/Necromancer (summons minions to attack but also at extremely high levels use rebirth spells which allows an adventurer to be reborn only a couple moments after dying)
These are all I can think of for now, however for mage there were two extra ones; Conjurer (uses weather spells/magic to attack–doesn’t use passive spells much), Elementalist (uses the 6 elements; Wind, Earth, Water, Fire, Darkness, Light for very strong attacks–very high level subclass only available to those who play the long game for it but maybe also requires a quest to unlock it?)