Pathfinder 3rd Party Class Tiers

Tier 0: Nothing (no reviewed class is this powerful, but they can be with certain capstones like the spellvampire shifter's Forever Evolving)

Tier 0.5: Vizier (Recordkeeper w/ Veilweaving sphere)

Tier 1: Psion (w/ Psychic Reformation), Wilder (w/ Psychic Reformation)

Tier 1.5: Psion, Taskshaper, Sphereshaper

Tier 2: Epilektoi, Fisherking, Harbinger, Mystic, Parasite, Rajah (Batal), Vizier, Wilder (w/ Student's Surge, Human FCB), Spellweaver, Transcendent (by Studio M-)

Tier 2.5: Aspect, Channeler, Daevic (w/ Knowledge Passion), Daevic Retold, Eclipse (w/ occultation), Fey Adept, Hedgewitch (w/ flex talents, most archetypes), Incanter, Necros, Prodigy (w/ custom techniques), Occultist (by Radiance House), Rajah, Sage (w/ ki clone, custom techniques), Shadow Weaver, Spiritualist (by Drop Dead Studios), Stalker, Thug, Troubador, Voyager, Warder, Wilder, Zealot

Tier 3: Armiger, Armorist, Conscript, Cryptic, Daevic, Dilettante, Dissident, Dragoon, Dread (w/o fear immune enemies), Eclipse, Enlightened Scholar (w/ spellcasting), Guru, Hedgewitch, Helmsman, Highlord, Huay, Medic, Nexus, Prodigy, Promethean, Psychic Warrior, Reaper, Sage, Scholar, Stormbound, Soul Weaver, Tactician, Thaumaturge, Theorist, Vitalist, Volur, Warden, Warlord, Wraith

Tier 3.5: Aegis (no archetypes / extra access), Blacksmith, Bravo, Courser, Elementalist, Eliciter, Envoy, Kheshig, Mageknight, Mountebank, Professional, Radiant, Sage, Scholar, Sentinel, Shifter (by Drop Dead Studios), Soulforge, Soulknife (Gifted Blade), Striker, Symbiat, Technician, Thaumaturge (Savant), Zodiac (Lunar)

Tier 4: Commander, Demon Hunter, Echo, Marksman, Mastermind, Voltaic, War Dancer, Zodiac (Solar)

Tier 4.5: Agent, Enlightened Scholar (w/o spellcasting), Crux, Kineticist, Kusa, Soulknife, Successor

Tier 5: Paramour, Vauntguard

Tier 5.5: Dread (w/ fear immune enemies)

Tier 6: 

Others: