You can get any size tire for either 27.5 or 29"/700c.
For your riding a 2" sounds good. Like the Giant Toughroad would be great. But for your size I don't know of a bike with 27.5.
I don't understand yor objection to a tire size that clearly comes with bikes for your size. As I said, 27.5 is only used on small frames or MTB designed for tight cornering, neither applies to hybrids for 6' tall people. 29" rolls much better.