You may either look for General Tyres made in Pakistan, or Dunlop or Bridgestone tyres, etc.
For authentic tyres; please check "Tyre Point" at Metro Cash and Carry, and Marina Tyres at Kamran market, Rawalpindi Saddar for Dunlop tyres.
For Bridgestone; https://www.bridgestone.net.pk/wp-content/uploads/2020/10/Dealer-List.pdf
For Continental tyres, https://www.continental-tyres.com.pk/car (the website is official) and as per this website, Tyre Point is their only authorised dealers.
For Michelin, Zeetex, Otani, DoubleCoin, Toyo, MRF and Hankook; https://zafarenterprises.com/find-dealers/ all the way! 
Before buying tyres from even the authorised dealers, ensure that tyres are non-smuggled, and insist on it, otherwise, even an authorised dealer can sell you a smuggled tyre, as profit margins are more in such tyres.
I hope, all above helps and guides. Thank you.