i have used michelin. now very expensive.
best get bridgestone tyres from authorized dealer.
i got recently from technotyres near boardoffice. they also have nitrogen filling facility. free for new tires. main bridgestone dealer is in DHA
i have also used maxxis on cuore, but the main dealer is on maripur road. too far for me.
you can get yokohama from sheikh brothers, behind hotel faran. main importer of yokohama.