I wind my own as I generally like to match top and bobbin threads.
As for threads, I have gone to
www.metroemb.com for thread. As the name says, it is an embroidery thread so it's made for high speed machines, trilobal poly. Awesome thread and extremely inexpensive. No lint.
I am one of those fortunate ones who's machine isn't picky on thread and my tension rarely goes whacko!
Love the classes and have watched every Jamie Wallen video out there. He goes into all kinds of things besides just quilting like timing, tension, etc. There is also one out there called TNT, Thread, Needles and Tension. Awesome video and well worth the few minutes it takes.
Have fun!
Jane