I've had good luck with Dells, particularly when they have sales.
I just picked up for my son an XPS Tower - 8910, so it's a Skylake rather than a Kaby Lake, but, interestingly, it came from their business-side.
i5-6400
8 GB RAM (2133 MHz)
GT 730 DDR3 (odd, because the integrated HD 530 should perform better)
1 TB HDD
Windows 10 Pro
Optical Drive (8x DVD +/- RW)
SD Card Reader
Basic keyboard and mouse
And, the case design which is tool-less. Side panel pops off with the pull of a lever, flip two levers and the PSU swings out of the way on an arm.
The downside - I think it came with a 350W Power Supply. I had assumed it would be a 460W, though it appears their new towers can have either/or. Kind of strange. Still, for the time...