We had a DVD player in the minivan but it eventually broke, not to mention we had problems with it (who has a DVD anyway) and couldn't watch Netflix on it (although it had an HDMI port, there were copy protection circuits preventing us from playing Netflix!). Currently the best option is to install an iPad with shows/movies preinstalled. The kids love it and it's very stable even when the kids play with it.
10.5" Tablet Apple iPad Air 2019, 256 GB, Wi-Fi, iOS, silver
11 Review
π Universal Car Headrest Tablet Mount Holder - Compatible with iPad Pro 12.9/11, Phones/Tablets/Switch 4.7"-12.9" - Adjustable Headrest Posts Width 5.2in-5.7in - Sleek Black Design
10 Review
LISEN Headrest Compatible Smartphones 4 33In 8 66In
9 Review
Headrest Moonooda Universal Backseat Compatible
11 Review
π΄ ZUGU Case for 2021 iPad Pro 12.9 inch Gen 5 - Slim Protective Case - Wireless Apple Pencil Charging - Magnetic Stand & Sleep/ Wake Cover - Cherry Red (Fits Model #βs A2378, A2379, A2461, A2462)
5 Review
π± JETech Case for iPad 10.2-Inch (2021/2020/2019 Model, 9/8/7 Gen) Auto Wake/Sleep Cover - Black: A Sleek and Functional iPad Protector
7 Review
π± ZUGU Case for 2021 iPad Pro 12.9 inch Gen 5 - Slim Protective Case - Wireless Apple Pencil Charging - Magnetic Stand & Sleep/Wake Cover - Stealth Black (Fits Model # A2378, A2379, A2461, A2462)
6 Review
π± Fintie Keyboard Case for iPad 9.7 2018/2017/iPad Air 2/iPad Air - Slim Shell Stand Cover with Wireless Bluetooth Keyboard - Navy
6 Review