Post Reply - Thrash metal recommendations

Lately, i've been getting into thrash. I really like Metallica, Kreator, Megadeth, Early Sepultura, some albums by Slayer etc... Could anyone reccomend me some good old school thrash bands? I like some modern thrash like Nevermore or newer Kreator albums like Violent Revolution, but i prefer old school.
However, i really dislike bands like Testament or Exodus. I don't know why, but they just sound so much different than the bands i mentioned. Or maybe I listened to their less good albums.
Any reccomendation will be highly appreciated. :D