The only hotel remotely close to there that I've set foot in is this Marriott.
https://www.marriott.com/en-us/hotel...dows/overview/
It's a Marriott. A typical Joe Bob Marriott, so it's nice. And it's near the mall, which is probably the only thing you'd really do in Highlands Ranch. Your other option is to go to the far west side of Highlands Ranch (the opposite side of this hotel) so you can go find some foothills trails or something.
But fun in Highlands Ranch? It's a safe place, but it's the very definition of suburban planned development. So you're not going to encounter much there that's unique.