I love all threads by Superior and by Presencia. They are virtually lint free and are this quilter's dream thread.
These brands are both available online at Red Rock Threads and Sew Thankful (sewthankful.com). Both stores have frequent sales and have very reasonable shipping charges. I have shopped both sites for years and have found them to be very dependable.
You will love Presencia 60 wt 3 ply for piecing. Scant quarter inch seams are a breeze because the thread takes up less room in the seam and is just as strong as any other company's 50 wt 3 ply.
Enjoy finding a thread that pleases you!