L&LR is, for a TTRPG that eschews the stats-and-d20 design, secretly extremely D&D. The "pick a Living, People, and Past" character creation maps very easily onto "class, race, and background in D&D editions that support it".
The Livings themselves are recognisable, but they don't precisely correspond to individual D&D classes because I think a lot of the D&D classes are — technical term — crap. So let's look at that for a bit:
In the current draft, the Livings are Dedicant, Prometheist, Ecstatic, Warden, Mercenary, Pedlar, and Carnie.
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Dedicant: my longstanding and entirely sincere opinion is that clerics are a misfeature that only exists in D&D because Ol' Racist Gary was a fundie, and that once you have the Warlock, it's blatantly obvious that Clerics are just another Warlock, which gets special rules treatment because they're Jesus-Patron Warlocks and D&D refuses to refactor out certain types of misfeature. L&LR Dedicants are that generalisation: there is a hierarchy of cosmic powers, and you're at the bottom of the food chain — but you have a magic sugar daddy.
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Prometheist: if the Dedicant represents the establishment path to a certain amount of power — in the same way that fascist states delegate a certain amount of fash violence power to the cops — the Prometheist is the Wizard replacement: power gained outside the rules. By cheating, according to the system; and staying ahead of the consequences only by maintaining sufficient momentum of arcane mastery to keep running.
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Ecstatic: D&D's Bard class is conceptually muddled and(/because it's) without clear fictional antecedent, and D&D fandom — reliably toxic — has popularly construed them as industrial-scale date rapists. I am, shall we say, not a fan. The Ecstatic does draw on the idea of music as magical, and the sense that as such it's a group-affecting force, but generalises that and weds it to the idea of magic as social ritual spectacle, establishing a conceptual magic circle in which can exist an altered state of consciousness, with access to the colocated, interlinked, but usually immaterial supernal world.
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Warden: subsumes the Druid, which is entirely "Romans writing bullshit about the Celts" × New Age woo; and the Ranger, which is an uncomfortable grab-bag of Stuff to offset the fact that its fictional antecedent is Aragorn — literally one specific guy — and there simply isn't enough There there to hang a whole class off. (We'll leave aside the fact the 5e ranger is known to be brokenly bad, in pure mathematical comparison to the other 5e classes; that's a concern for systems which ragefap over Builds.) The Warden has been nominated, by nature itself, to be a champion for the Real World; as opposed to Cthulic reality-corroding nasties from Elsewhere. The druid's shapeshifting and ranger's outdoorsy schtick become a patrolling avatar of Reality, able to call on the capabilities of other Real things, one with everything, in reality's defence.
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Mercenary: D&D desperately wants "dude who does violence for a living" to be apolitical. Not having it; there's no generic Fighter here, nor even Soldier; the only people wandering aimlessly looking to be paid money for doing violence are, well, the kind of people who wander aimlessly looking to be paid money for doing violence.
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Pedlar: a Merchant class is one of the things Gygax didn't adopt from Arneson's Blackmoor. Very focused on violence, Ol' Racist Gary. It implies things about the world if there are lots of wandering violence artists and no wandering traders! L&LR, like Arneson, considers travelling trader a valid player role.
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Carnie: and to round out me slinging shit at D&D's classes, the Rogue has never transcended being a euphemism for the class it was originally introduced as, the Thief. Tolkien again: intended to be Bilbo in the Hobbit, and gone just as awry as the Ranger's Aragorn in the game's hands, the class is a gift direct from the game to shitlords who want excuses to be That Guy. (See also: the Dragonlance setting's Kender.) You can have the social suspicion, the grab-bag of physical and perhaps-dubious skills, and the player-beloved showoff aspect without including Criminal as a class; travelling entertainers fit the bill!
L&LR doesn't at this point directly support either a Paladin or Sorceror. Paladins because I'm not convinced there's anything there I care to salvage; Sorcerors, because their whole conception is Eugenics Übermench Wizards and I know I don't care to rehab that.