What thread are you using? Thread size in large part determines needle size. As to needle type, I'd have to check. I believe sharps, quilting, microtex have all worked for me for piecing. Superior threads recommends a top stitch needle:
https://www.superiorthreads.com/educ...-right-needle/
For a thorough education in needles and threads, check out their information here:
https://www.superiorthreads.com/education/
I used to use a size 80 needle for piecing. However, I have found that with my Aurifil 50wt 2-ply thread I can get away with using a size 70 or 75. The advantage of a smaller needle size is that the holes in the fabric are smaller. I also like the size 70 for machine applique using nylon monofilament thread (which is very fine). I think the needle I'm currently using for piecing is a microtex, but not sure.