You are way overthinking it. If you will consistently put 2-3K miles in 6 months on the engine, any commonly available synthetic will do fine and be a step up from the semi synthetic you're running now.
Short trips could take advantage of the synthetic oil. Supertech Syn, Cosco or amazon copies of Supertech also are fine. Pennzoil, Moble 1, Castrol Magnetec, Havoline Syn, Quaker State Ultimate, all would be more than enough for that application. Motorcraft is a good filter for that application.
Walmart is the best place to shop for oil stuff. good stock and much lower prices compared to autoparts stores.
I agree with this opinion. I just put some high mileage in an old Ford thinking it might help longevity. But for a younger vehicle any of these synthetics should do well with the OPs use of 6 months or 3k miles, and be a big improvement over conventionals.