Chosen Solution
Where should I buy a new hard drive for my 2013 MacBook Pro
You have just one option here: OWC SSD Upgrades for MacBook Pro with Retina Display 13" & 15" Late 2013, 2014, and 2015. You’ll need to follow this IFIXIT guide: MacBook Pro 13" Retina Display Late 2013 SSD Replacement.