I'm typically one that likes OEM products, but with USB cables & chargers there is honestly no need. For cables, just stick with a reputable cable manufacturer (like Anker or Aukey), and for chargers sick with a reputable company (same as before) and get a model that lists Qualcom QuickCharge 2.0 or 3.0 support. They'll all give you full fast-charge support and they'll be every but as good as OEM and cost less. I've been using Anker chargers for years to great success.
Even better, I picked up a couple Choetech wireless chargers for about $14 each that even support fast wireless charging. Chargers and cables are pretty universal, as long as you avoid the suspiciously cheap ones.