+1 for Giant trance, I have the 26 inch model which is fantastic, the newer versions should be even better.
I had a go on the new 650B version last weekend. Mate got a demo for a couple of days so we went out and swapped every five miles or so. I took my 13 Zesty 314 for comparison. I have been sceptical about 650B so jumped at the chance to try it. There is a lot to like about the bigger wheel, climbing is easier and in general it felt like it took less effort to ride. Going from one bike to another (and doing our best to concentrate only on wheel size) was an eye opener. we decided that a 26 wheel felt more nimble and more fun. The 650 just had a more XC feel…. We both came away very unsure about buying a 650B bike, there was nothing about it that really stood out, in fact it made things a bit easier and took the edge off the fun stuff if anything.
To the OP. There are organised events where you can try a lot of different bikes and now, different wheel sizes. I would make the effort to get out and get an idea of what your options are. If nothing else you might find out what you don’t like.