(
VERY LONG LIST AHEAD!)
I'll give my favourites from each gen:
Gen 1: Bulbasau
r line, Gengar, Hypno, Cubone, Lapras, Jolteon, Articuno
Gen 2: Totodile line, Ledyba, Spinarak, Crobat, Ampharos, Politoed, Umbreon, Murkrow, Shuckle, Heracross, Ursaring, Skarmory, Smeargle, Hitmontop, Elekid, Entei, Tyranitar, Lugia
Gen 3: Treecko line, Blaziken, Mudkip, Swampert, Lotad line, Nuzleaf, Shiftry, Swellow, Breloom, Nincada line, Exploud, Sableye, Aron line, Manectric, Minun, Swalot, Sharpedo, Camerupt, Spinda, Trapinch line, Cacturne, Swablu line, Zangoose, Armaldo, Kecleon, Shuppet line, Tropius, Absol, Spheal line, Salamence, Beldum line, Latios, Kyogre, Groudon, Rayquaza
Gen 4: Turtwig line, Chimchar line, Piplup line, Staraptor, Shinx line, Roserade, Cranidos line , Bastiodon, Buizel line, Gastrodon East Sea, Honchkrow, Bronzong, Spiritomb, Gible line, Munchlax, Riolu line, Hippowdon, Drapion, Carnivine, Snover line, Magnezone, Rhyperior, Electivire, Yanmega, Gliscor, Mamoswine, Gallade, Dusknoir, Rotom, Uxie, Dialga, Heatran, Giratina, Darkrai, Shaymin Sky Forme, Arceus
Gen 5: Snivy, Serperior, Tepig line, Oshawott line, Lillipup line, Pansage line, Pansear line, Blitzle line, Gigalith, Drilbur line, Tympole line, Sewaddle line, Venipede line, Whimsicott, Sandile line, Darumaka, Darumaka Galarian Form, Darmanitan Standard Mode, Scraggy line, Sigilyph, Yamask line, Tirtouga line, Archen line, Trubbish, Zorua, Zoroark, Zoroark Hisuian Form, Cinccino, Reuniclus, Ducklett, Sawsbuck Winter Form, Jellicent Male, Joltik line, Ferrothorn, Klink line, Eelektross, Litwick line, Axew line, Cubchoo line, Stunfisk Galarian Form, Druddigon, Golett line, Pawniard line, Rufflet line, Durant, Deino line, Larvesta line, Cobalion, Terrakion, Tornadus Therian Forme, Reshiram, Zekrom, Kyurem, Black Kyurem, Keldeo Ordinary Form, Genesect
Gen 6: Chespin line, Delphox, Froakie, Greninja, Fletchling line, Litleo line, Skiddo line, Pancham line, Furfrou Natural Form, Meowstic, Honedge line, Swirlix, Inkay line, Barbaracle, Dragalge, Clauncher line, Helioptile line, Tyrunt line, Amaura line, Hawlucha, Goomy line, Phantump line, Bergmite line, Noibat line, Xerneas Active Mode, Yveltal, Zygarde, Zygarde 10% Forme, Zygarde Complete Forme, Diancie, Hoopa Confined, Volcanion
Gen 7: Rowlet line, Litten, Torracat, Popplio line, Pikipek line, Vikavolt, Oricorio Pom-Pom Style, Rockruff line, Mareanie line, Mudbray line, Araquanid, Lurantis, Shiinotic, Salandit, Stufful line, Wimpod line, Type: Null line, Komala, Turtonator, Togedemaru, Mimikyu, Drampa, Dhelmise, Jangmo-o line, Tapu Koko, Cosmog, Solgaleo, Xurkitree, Necrozma, Ultra Necrozma, Magearna, Marshadow, Poipole line, Zeraora, Meltan line
Gen 8: Grookey, Rillaboom, Scorbunny line, Sobble line, Corviknight, Eldegoss, Wooloo, Chewtle line, Yamper line, Coalossal, Applin line, Cramorant, Toxel line, Centiskorch, Clobbopus, Impidimp line, Obstagoon, Perrserker, Sirfetch'd, Mr. Rime, Runerigus, Milcery line, Falinks, Snom line, Eiscue Ice Face, Indeedee Female, Morpeko, Cufant line, Duraludon, Dreepy, Dragapult, Zacian , Zamazenta, Eternatus, Kubfu line, Zarude, Glastrier, Wyrdeer, Ursaluna,
Gen 9: Sprigatito line, Quaxly line, Nymble line, Pawmot, Dachsbun, Dolliv, Garganacl, Charcadet line, Bellibolt, Wattrel line, Mabosstiff, Grafaiai, Capsakid line, Rabsca, Palafin Hero Form, Orthworm, Cetoddle line, Veluza, Tatsugiri, Annihilape, Clodsire, Kingambit, Great Tusk, Slither Wing, all future paradox Pokemon, Frigibax, Arctibax, Gholdengo, Wo-Chien, Ting-Lu, Roaring Moon, Miraidon, Walking Wake, Ogerpon, Fezandipiti, Terapagos
