We visited New Mexico in November 2018. Santa Fe was great! Suggestions of things we really enjoyed......
Los Alamos...Bradbury Museum....well worth the drive! On return drive to S.F. we went to Bandelier Natl. Monument. Definitely a good stop.
Taos...Drove the high road there, stopping at Santuario de Chimayo. After spending time at the Pueblo and enjoying fry bread (both savory and sweet), we took the low road back, along the Rio Grande River (yes, THAT Rio Grande!). Beautiful flowers along riverbank.
Museum Hill....especially the International Folk Museum and the Museum of Indian Arts and Culture. You can stop at Loretto Chapel on the way up or back, a short visit, but an interesting church.
The Georgia O'Keeffe museum in Santa Fe was a big disappointment.
Stroll the central plaza to shop and relax. It is close to the Cathedral Basilica of St. Francis of Asissi. We attended mass there. It is worth a visit.
We stayed at the Inn of the Governors. I would go back in a minute...rooms were comfortable and charming, the buffet breakfast was terrific, and the ambience in the pub there was lots of fun. Lots of locals go there, and they had a great margarita! You can get a meal there (good bar food menu). We stopped in most nights for a drink and had some great conversations with the locals and the hotel guests. It's a short walk to the plaza, and parking is available.
We also went to Albuquerque (Indian Cultural Center, Balloon Museum, Old Town Plaza), Alamagordo and Las Cruces (White Sands Nat. Monument, the White Sands Missile Range museum nearby), Socorro (the Very Large Array...radiotelescopes), all worth the travel around the state.
On another trip, we went to Chaco Canyon, a uniquely beautiful and moving sight. Gallup is a neat stop for the old west feeling if you are visiting Chaco Canyon. New Mexico has lots to see and do. but with only 7-8 days, I would spend 5-6 in Santa Fe, doing two day trips I mentioned above, and 2-3 in Albuquerque. The drive between the 2 cities isn't too long. We left S.F after breakfast and got to Albuquerque in time to see an afternoon performance of Native American dances at the Indian Cultural Center.
Enjoy New Mexico! I still have a few things to see there (Carlsbad Caverns, the Trinity site, Indian petroglyphs for example). Guess I have to return to the "Land of Enchantment."