This is the list I've used when crosschecking charge cables for my Macs with USB-C - I've preferred to purchase something that was both on the IF compliance list and Benson tested & approved
https://www.usb.org/kcompliance/view/USB Type-C Cable Certifications.pdf
To date none of the magnetic cables have appeared on this list to my knowledge, and I am not sure how long a certification takes or how often the IF updates the list
Further, to my knowledge, none of the USB-C charge cables with magnetic breakaway capabilities have been Nathan K or Benson tested/approved
(given they have demonstrated that noncompliant cables can present both a hazard to the electronics and a hazard to personal safety, that's kind of pushed me in the direction of preferring compliant cables - it's even made me weary of hubs with passthrough charging given virtually none have such independent certification.)