You might consider the S21B.
Mine is using the XHP 50.2 with an OP reflector. It is, of course, bigger than the S2+ as it uses 21700 cells. But, at least, the head and body are the same diameter. It is a decent balance of throw and flood, but with his small reflector and LED it is a short to medium range light. Probably the XHP 70.2 will be a bit brighter, but be more floody. Look for reviews, but it will likely have similar throw just due to its higher output.
Also, if you are interested in a clip, you need to buy it separately. I got one from Convoy that attaches with a couple of screws. It works fine, once you get those tiny screws and nuts attached.
As others have said, the 6500K LED will be the brightest for a given LED. They use less phosphor, so less filtering. 6500K lights were all I bought for many years. Though the last few years I have found I like more neutral white CCTs. Like 4500K to 5000K. But this is personal taste.
R70 is CRI. Many say higher is better. They list many reasons. None of which are important to everyone. To me, if you are not doing photography or have a real need to determine accurate color rendition, it is not that big of a deal. So, “worse” will be according to your needs and perception. Not in any way an absolute.
If all that you need is output 6500K R70 will be fine.