The hike to Mount Esther via Crowe Gulch is a moderate hike through the Pike National Forest with amazing views of the Pikes Peak Area.
Genesee Mountain is a nice hike that isn’t too hard and is easy to get to. The bonus is that there is a herd of bison that live nearby.
The Brainard Lake Recreation Area is one of my favorite places to hike in summer. I tried Brainard: Long Lake Loop (winter) and it was great.