Black paint finish, the most difficult color to maintain. I wouldn't recommend ordinary carnauba wax as this type of paint protection doesn't last long and can be a chore to apply. Sure there's Collinite and Soft99 brands but instead of carnauba wax better go for a paint protection that's more durable and can provide good gloss and shine as well. Turtle Wax Seal N Shine is by far the most recommended polymer paint protection that's durable and light on the pocket. You can also use the paint protection as a drying aid that helps reduce swirls when drying the car paint with a microfiber towel.
You can buy TW Seal N Shine at lazada
Turtle Wax ICE Seal N Shine 5�984 473mL (RDMH) | Lazada PH
Be sure to prep your car's paint to ensure good bonding for the paint protection. Use a clay bar (grab the soft99 green colored clay bar at Concorde) to remove those contaminants from the paint. If you want to be thorough and meticulous with the prep process, here's a good vid to start with:
Pre-Wash, Contact Wash, Decontamination, Clay. What I Use On A Daily Basis! The Best Of The Best!! - YouTube