Yeah there are lots. So lets try to answer this anyway!
Fire
Parasect, Paras, Forretress, Scizor, Wormadam Trash Cloak, Wormadam Plant Cloak, Snover, Abomasnow, Sewaddle, Swadloon, Leavanny, Escavalier, Ferroseed, Ferrothorn, Durant, Genesect, Alolan Sandshrew, Alolan Sandslash, Kartana, Snom, Frosmoth
Water
Geodude, Graveler, Golem, Onix, Rhyhorn, Rhydon, Magcargo, Larvitar, Pupitar, Numel, Camerupt, Rhyperior, Carkol, Coalossal
Electric
Gyarados, Mantine, Wingull, Pelipper, Mantyke, Ducklett, Swanna, Cramorant
Grass
Geodude, Golem, Graveler, Rhydon, Rhyhorn, Omanyte, Omastar, Kabuto, Kabutops, Wooper, Quagsire, Johtonian Corsola, Larvitar, Pupitar, Barboach, Whiscash, Relicanth, Marshtomp, Swampert, Gastrodon, Rhyperior, Palpitoad, Seismitoad, Tirtouga, Carracosta, Binacle, Barbarcle, Drednaw
Ice
Dragonite, Hoppip, Skiploom, Jumpluff, Gligar, Vibrava, Flygon, Altaria, Tropius, Salamence, Rayquaza, Torterra, Gible, Gabite, Garchomp, Gliscor, Shaymin-Sky, Landorus, Noibat, Noivern, Zygarde, Alolan Exeggutor, Applin, Flapple, Appletun, Toedscool, Toedscruel
Fighting
Tyranitar, Mega-Tyranitar, Sneasel, Aron, Lairon, Aggron, Shieldon, Bastiodon, Weavile, Probopass, Pawniard, Bisharp, Amaura, Aurorus, Alolan Rattata, Alolan Raticate, Alolan Sandshrew, Alolan Sandslash, Stakataka, Galarian Zigzagoon, Galarian Linoone, Obstagoon, Kingambit, Chien-Pao
Poison
Cottonee, Whimsicott, Morelull, Shiinotic, Tapu Bulu
Ground
Magnemite, Magneton, Magnezone, Magcargo, Aron, Lairon, Aggron, Shieldon, Bastiodon, Probopass, Heatran, Rotom-H (Without Levitate), Alolan Geodude, Alolan Graveler, Alolan Golem, Salandit, Salazzle, Togedemaru, Nihilego, Stakataka, Carkol, Coalossal, Toxel, Toxtricity, Varoom, Revavroom, Glimmet, Gimmora, Iron Moth, Iron Thorns
Flying
Paras, Parasect, Heracross, Breloom, Wormadam Plant Cloak, Sewaddle, Swadloon, Leavanny, Virizion, Chesnaught, Buzzwole, Pheromosa, Slither Wing
Psychic
Croagunk, Toxicroak, Hisuian Sneasel, Sneasler
Bug
Exeggcute, Exeegutor, Celebi, Nuzleaf, Shiftry, Cacturne, Inkay, Malamar, Zarude, Calyrex, Meowscarada, Brute Bonnet, Wo-Chien
Rock
Charizard, Mega Charizard Y, Butterfree, Moltres, Articuno, Mega Pinsir, Ledyba, Ledian, Delibird, Ho-Oh, Beautifly, Masquerain, Ninjask, Combee, Vespiquen, Mothim, Yanma, Yanmega, Larvesta, Volcarona, Fletchinder, Talonflame, Vivillion, Oricorio-Baile, Sizzlipede, Centiskorch, Snom, Frosmoth
Ghost
Hoopa, Lunala, Calyrex Shadow Rider
Dark
Hoopa, Lunala, Calyrex Shadow Rider
Steel
Amaura, Aurorus, Carbink, Diancie, Alolan Ninetales
Fairy
Scraggy, Scrafty, Deino, Zweilous, Hydreigon, Pancham, Pangoro, Hakamo-o, Kommo-o, Guzzlord, Single Strike Urshifu, Roaring Moon, Koraidon
This answer does not take into account types added via Forest's Curse or Trick-Or-Treat. It also excludes type interactions during Inverse Battles, as well as the unique interactions provided by Freeze-Dry and Flying Press. It assumes we are using the current type chart, which took effect in Generation 6.
Comment if I missed something
