I’ll be adding information about trails I run soon, but for now you can check out my personal Facebook page: https://www.facebook.com/gary.stark.10485
These are sites I use often for trails:
http://www.rockymountainhikingtrails.com/hiking-rocky-mountain-national-park.htm Ranks trails by difficulty using mileage and elevation gain.
https://www.alltrails.com/parks/us/colorado/rocky-mountain-national-park Use the reviews on alltrails to find out about recent conditions of trails.
Also, a great tool for weather at different elevations of your hike: