The consensus is – go with what suits you best.
You need to get out and cover a good few miles and work out what’s going to work for you. I ride a drop-barred tourer on the road and a flat-barred “tourer” for off-road. both work well in their environment, both have their pros and cons. I’ve never tried the “butterfly” bar set-up that is very popular in mainland Europe where, btw, there are all sorts of “Trekking” bikes that are used for a variety of on- and off-road touring.
How much touring, or other longs rides, have you already done? What have you learnt so far?