Is surgery recommend for this & what kind? c5-c6 large right paracentral disc protrusion seen, which extends 6 mm into the central canal. there's more

Yes surgery.: 6 mm disc herniation in the cervical spine is a giant disc. Therefore, more likely than not you would be symptomatic with bad neck and arm pain and numbness. So, if you have these symptoms AND if you have failed all conservative care, I would recommend anterior cervical discectomy and fusion at C5-6. If you have weakness, I would recommend surgery even if you did not have conservative care.