Don't really see the point. Major tier shifts in archetypes are usually already listed in tier lists. If you want to know the top archetypes for each class, I can crank some out quickly:
Alchemist: Gun Chemist,
Preservationist (esp. with
Planar Preservationist feat - mostly predicated on action economy abuse with extracts),
Promethean Alchemist,
Toxicant,
Winged MarauderAntipaladin: Tyrant (At level 15+ with Summon Monster VIII the Fiendish Boon opens up Contract Devils or Cabal Devils if you worship Mephistopheles or Mahathallah respectively, but at lower levels you're looking at either a fiendish pouncing cat or Erinyes for fear abuse)
Arcanist: Eldritch Font,
OccultistBarbarian: Invulnerable RagerBard: Studious Librarian,
Voice of the Wild,
Magician (if cheesing the non-unchained Summoner spell list; also, you can use it to stack multiple bardic performances by sacrificing spell slots),
Fey Courtier (depending on how well you use the fey summons' abilities),
Faith Singer,
Chelish Diva (Instant no save frighten as a performance, why not, plus armor proficiencies),
Sandman (depending on your party's spellcasters),
Negotiator (if used to break the economy or to take advantage of enemies' lowered saves),
Brazen Deceiver (especially if you have the Pageant of the Peacock masterpiece).
Brawler: Exemplar,
Venomfist,
Wild ChildBloodrager: Bloodrider (especially if you use the
Monstrous Mount feat to get a Griffon as your mount and
Boon Companion feat to remove the level penalty),
Crossblooded Rager (depending on your selection and ability to cover will saves, as you do eat -4 will - you may want the
Deathtouched race trait, which conveniently works for any race, for +2 vs mind-affecting saves),
Metamagic Rager (easily beats Improved Uncanny Dodge),
Primalist,
Urban BloodragerCavalier: Constable (if paired with
Padma Blossom or
Indomitable Jewel)
Cleric: Ecclesitheurge,
Divine Paragon,
Evangelist (if you are going for Summon Monster abuse, especially with a
Feather subdomain and
Boon Companion for an animal companion - note that it works as bardic performance in all respects, which includes the shift from standard action to move and swift action)
Druid: Nature Fang (Not really better than Wild Shape unless you take advantage of the DC bonuses with Studied Target, since Spells are in fact a class ability of the Druid),
Nature Priest,
Halcyon Druid,
Pack Lord (esp. with multiple Boon Companion feats),
Lion ShamanFighter: Eldritch Guardian,
Gloomblade,
Martial Master,
Mutation Warrior,
VikingGunslinger: Bolt Ace (with dwarven pelletbows or double crossbows),
Pistolero,
Musket Master (if playing as
Kasatha race to dual-wield muskets)
Hunter: Divine Hunter,
Primal Companion HunterInquisitor: Ravener Hunter,
Sacred Huntmaster,
Sanctified Slayer,
Monster TacticianInvestigator: Antiquarian (if you want to craft magic items, use lesser metamagic rods of quicken spell, use Samsaran race for mystic past life, or use spellcaster prestige classes),
Toxin Codexer (poison a lot of weapons out of combat with modified mundane poisons and you can ensure anything is exhausted and later suffering 30% arcane spell failure chance, best of all these modifications apply regardless of whether or not someone saves against the poison itself)
Magus: Beastblade (if abusing action economy),
Bladebound (if not abusing action economy with familiars or using spell-storing weapons),
Eldritch Archer,
HexcrafterMedium: Uda Wendo,
Fiend Keeper,
Spirit Dancer,
Rivethun Spirit ChannelerMesmerist: Material Manipulator (especially with Half-Elf race for
Paragon Surge, but you should really get
Logical Spell and/or a Lesser Metamagic Rod of Logical Spell now that you can no longer remove shaken from yourself as a swift action)
Monk: Sohei,
Zen Archer,
Nimble Guardian,
Qinggong Monk (if we are even treating that as an archetype),
Invested Regent (get Divine Favor as a SLA and combine it with the Fate's Favored faith trait)
Monk, Unchained: Invested Regent (as above)
Ninja: Hunting Serpent (unless you are in a party with a Bard),
Petal NinjaOccultist: Haunt Collector,
ReliquarianOracle: Spirit Guide,
Cyclopean Seer if you want to abuse flash of insight, like with randomized spell/item effects or a
Heart-Piercing bow (or arrow).
Paladin: Sacred Servant (with Oath of Vengeance and a good domain selection; also, a good planar ally can make this T2 or even T1),
Oath of Vengeance,
Oath against Fiends (mostly for the great spell list, although being able to split a divine bond with your shield is a neat perk),
Oath of the Skyseeker (Mostly Stalwart and Smite Evil Hordes are very good abilities & you
could use
Perfect Style with
Tea of Transference since you can't get Oath of Vengeance),
Gray Paladin (if you use it to get
Diverse Obedience with
Deific Obedience (
Shelyn) for an extremely powerful and more versatile smite evil)
Psychic: Amnesiac,
Esoteric Starseeker (if your psychic discipline's 1st-level powers aren't worth having),
Magaambyan Telepath,
Psychic Duelist (if you abuse its ability to extend spell-inflicted conditions, which, being an extension of the duration of the condition and not the spell itself, can even be used with instantaneous duration spells, metamagic-inflicted conditions, or the Debilitating Pain spell for a lengthy no save daze)
Ranger: Beast Master (with multiple
Boon Companion feats),
Nirmathi Irregular (if you can expect enemies to be predominantly of a single type, like an undead campaign)
Rogue: Eldritch Scoundrel,
Sylvan TricksterSamurai: Ironbound Sword (if you dip 1 level of Fighter or 3 levels of
Weapon Master Fighter, since Bonus Feats is a level-scaling class feature of the Fighter class)
Shifter: Adaptive Shifter,
Weretouched ShifterSkald: Red TongueSorcerer: Razmiran Priest,
Mongrel MageSpiritualist: Involutionist,
Onmyoji,
Priest of the Fallen,
Totem SpiritualistSummoner: Master Summoner,
Morphic SavantSummoner (Unchained): Blood Summoner,
Master Summoner,
Morphic Savant,
Twinned SummonerVigilante: Pick a spellcasting archetype, really.
Zealot and
Magical Child probably are best.
Witch: Beast-Bonded (esp. from level 10 onwards),
Dimensional Occultist (for high level campaigns where the planar binding spells, gate, and perfect dimensional travel are useful),
Pact Witch (planar ally, early plane shift, and gate, plus Improved Familiar is a good trade for a hex),
Scarred Witch Doctor (Even post-errata, it effectively permits a
Half-Orc or
Racial Heritage (Orc) character to start with 22 int
before age modifiers, and it's easier to protect a mask than a familiar, especially if you use one or more
Fortifying Stones, and the massive enhancement bonus to natural armor also helps a Witch obtain high AC)
Wizard: Exploiter Wizard (DC abuse and exploits),
Spellslinger (bigger DC abuse),
Runesage,
Thassilonian Specialist (more spells),
Spell Sage (for CL abuse and (early) spell access, esp. potent if abusing necromancy),
Pact Wizard (Haunted Heroes Handbook version, get Witch patron spells which can be cast spontaneously, get Oracle curse, get much better initiative, caster level checks, and saves, and get -1 metamagic reduction to patron and oracle curse spells)