XHF 100 PCS 3/4" Black Self Adhesive Cable Zip Tie Mounts Wire Cable Clips Holders Management Anchors Organizer Holders Squares(HS-101S)

You can use these to stick behind the grill and attach the zip ties to it. https://a.co/d/0hYuLjaj

I'd say get these because they're everything you need: cheap, thin / lightweight, and USB-IF certified. https://www.amazon.com/Amazon-Basics-Charger-480Mbps-Certified/dp/B07CZW75J5 To further protect the port and cable, consider a retaining device like this: https://www.amazon.com/dp/B07VQQ6X76 Or loop the cable through a zip tie mount like this so that strain is not put on the USB-C conection https://www.amazon.com/XHF2018-Adhesive-Holders-x19-5mm-HS-101S/dp/B07M69LK65