Normal

Attack
Normal type Pokemon are not very effective on Rock and Steel type

Normal type Pokemon have no effect on Ghost type

Defense
Ghost type Pokemon have no effect on Normal type Pokemon

Fighting type Pokemon are super effective on Normal type Pokemon

Pokemon
Pidgey, Pidgeotto, Pidgeot, Rattata, Raticate, Spearow, Fearow, Jigglypuff, Wigglytuff, Meowth, Persian, Farfetch'd, Doduo, Dodrio, Lickitung, Chansey, Kangaskhan, Tauros, Ditto, Eevee, Porygon, Snorlax, Sentret, Furret, Hoothoot, Noctowl, Igglybuff, Aipom, Girafarig, Dunsparce, Teddiursa, Ursaring, Porygon2, Stantler, Smeargle, Miltank, Blissey, Zigzagoon, Linoone, Taillow, Swellow, Slakoth, Vigoroth, Slaking, Whismur, Loudred, Exploud, Azurill, Skitty, Delcatty, Spinda, Swablu, Zangoose, Castform, and Kecleon