On amazon I have had a lot of good filement from, hatchbox, overture, mika3d, gizmo dorks, enotepad, and eSun. I had a bad spool from sunlu and haven’t ordered from them since.
I love the carbonfiber black pla from enotepad. I have ordered probably close to 10 of those. For my primo I used this and the mika3d gold. Golden Primo First build