I have had good success with 3m paint protection film on amazon, there are some nice custom cut kits but they can get pretty pricey.
I’ve done the bottom 8” of my doors and box along with a few other small areas. It took some time but it looks good and no yellowing yet in 7 months.
Paint chips suck! Your dealer will have a stone chip repair pen for sale for like $20 colour matched to your truck, with a steady hand you can fill the chip and make it a lot less noticeable. If you want it near perfect, wet sanding and buffing will be required.