Well, when it comes to thrash my listening is a bit limited, if only because I find many bands tend to sound so similar but I like the usual stuff like Overkill and Annihilator, and maybe Helstar but people tend to consider them "speed metal", but the difference between "speed metal" and "thrash metal" is often a bit blurred. My music taste is a bit more European-leaning so I usually enjoy bands more when they incorporate elements of thrash but wouldn't be consider thrash proper. There is a really good band from Canada called 3 Inches of Blood that is a sort of thrash/power-metal/NWOBHM/death-metal blend and they are really good and tend to tour with bands that are probably more up your alley like Overkill and Goat Whore, you might enjoy some of their stuff.