In RMNP, Spearhead also has a good 5.6 and a good 5.9. While up by the Petit, you should also climb Sharks Tooth.
Most routes in the Indian Peaks are a bit shorter. Mt Toll has a nice 5.6, and Lone Eagle Peak has a nice 5.7 that is mostly easier with a long approach.
The Aprons on Mt Evans are fun very high altitude alpine cragging. You could easily do a couple of routes in a day there.
Check out route descriptions for these places on mountainproject.com
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