In that case, check out the Chicago Basin area in the San Juan Mountains. For a longer trip, start your hike at Purgatory trailhead, hike in day 1, days 2-4 do some 14ers (4) and 13ers and day 5 hike out. A train is also available but you need to time your hike with the train schedule and it shortens you trip by a day at least.

You can then drive to South Colony lakes TH or Willow Lake TH in the Sangre de Cristo Range and hike up into either basin where there are 5 14ers you can climb in 3-4 days, plus your approach and exit days would be a good 6 day trip and either hike out the other side or hike back to the side you started.

Or, get a map of the Sawatch Range where you canq string together up to a dozen 14ers depending on where you start/finish and how long you want to be out there.