Looking for a 6-8 speed super straight Fairway Driver

For arm speed reference, I throw a new Big Z Buzz about 310 on a straight line, looking for something similar but in a 6-8 speed.

Love throwing the kasta Lots, but goes long often when I need a 350-370ft low ceiling/tunnel shot, looking for something in the middle that is a straight shooter right out of the box

Thanks!