Arizona is awesome. It's my favorite state to visit. Been there like 4 times now.
Definitely recommend spending 1-2 days in Sedona, especially if you're in to hiking (plenty of easy trails with paths for all ages).
We also spent a day at the Grand Canyon and 2 days in Page, going to see Horseshoe Bend and ATTEMPTED to go see Antelope Canyon, but it was still closed due to Covid. Since Antelope Canyon was closed, we drove about an hour into Utah and went to Buckskin Gulch instead.
Jerome, AZ is also a funky little ghost town to go see. Well, it USED to be a ghost town but now it's a tourist town. It's up on a mountain. Look up some YouTube videos, it's unique.
We also visited Sunset Crater in Flagstaff, which used to be a volcano. It's black rock and black sand from volcanic ash.
I took my drone to all of these places and got some really cool footage. It was my favorite trip we've taken and I can't wait to go back.