[Credit Cards] Provide primary insurance for car rentals internationally

This is a bit of a follow-up to my other recent post since I learned that there are barely any free cards that provides primary coverage, so what are/is the best credit card that'll give you back the most cash back or points and provide secondary insurance that counts as primary insurance overseas. Ideally something that gives cash back / points on car rentals. I just need it for international trips, and I believe every card I've seen that provides secondary insurance will count as primary if you're outside of your home country.