Go to Walmart and pick your poison. Any synthetic on their shelves would do just fine. Pennzoil Platinum, Quaker State Ultimate Durability, Castrol Edge (Black), Mobil 1 all would serve you well. If you can find Kendall, it is a solid choice.
Royal Purple is a good choice if you can find it on sale or rollback at Walmart. If you have deep pockets, then go for a boutique oil (only available from "independent" distributors). Your truck will not notice a difference between a jug from Walmart or an overpriced boutique oil but if spending that extra money makes you feel better than have at it!
Welcome to the forum!