On one hand someone who seems as concerned as you do shouldn't have bought a vehicle that's GDI but on the hand if you were going to, you are quite prepared. Joking aside I loved reading that and I respect your thoroughness.
I'm not an auto mechanic and I'm not an oil expert, I don't get into NOACK and HSHT or whatever so take my advice for what it is: some dude's opinion on the Internet.
But with all that said I recommend.... VRP
No seriously. Why? There's no reason to believe it wont perform to or exceed the standards of what your Titan requires. There's also sufficient support that the VRP is, at the very least, comparable (if not better) to the Amsoil and such similar oils in terms of cleaning and preventing engine deposits, but at a much lower price, and given your shorter OCI thats going to be good for you.
Or give HPL a try. Idk seems popular here. For what it's worth, I tried Amsoil SS in my oil burning 2017 Sonata, and I wanted it to work so bad but I still lost a quart every thousand miles, and I wasn't about to pay $18 a quart to replenish when I was changing it out in 4000 miles. And I didn't observe any appreciable, nevermind noticable, performance benefits. Don't listen to people who say "this oil made the engine quieter" or "this oil made my car accelerate faster/improved my fuel economy". Now I hope your Titan isn't burning oil this early so maybe that's less of a deciding factor for your application, but I thought I would share.
I'm not an auto mechanic and I'm not an oil expert, I don't get into NOACK and HSHT or whatever so take my advice for what it is: some dude's opinion on the Internet.
But with all that said I recommend.... VRP

Or give HPL a try. Idk seems popular here. For what it's worth, I tried Amsoil SS in my oil burning 2017 Sonata, and I wanted it to work so bad but I still lost a quart every thousand miles, and I wasn't about to pay $18 a quart to replenish when I was changing it out in 4000 miles. And I didn't observe any appreciable, nevermind noticable, performance benefits. Don't listen to people who say "this oil made the engine quieter" or "this oil made my car accelerate faster/improved my fuel economy". Now I hope your Titan isn't burning oil this early so maybe that's less of a deciding factor for your application, but I thought I would share.