Zion: Main road is paved and open as it is a main highway. Bus to other areas.
Bryce: roads are paved. Some sideroads are hard packed gravel. You decide
Capital Reef: Main road is paved. Some sideroads are packed gravel
Canyon Lands: Many roads are paved, the ones that aren't you can't drive on anyway.
Dead Horse Point: paved
The Hogs Back Paved but no guard rails
Arches: paved to many arches, some hiking
Natural Bridges: paved but you must hike to see most of the bridges
Calf Creek Falls: paved to parking lot, 2.5 mile easy walk to falls,very interesting
Kolob Canyon: Paved beautiful drive
Kolob Reservoir: Paved beautiful drive 5 mph curves
Pipe Springs: Paved
Goblin Valley: Paved
Monument Valley: Gravel, busses available, Reservation shut down now due to Covid.
If there are other areas you want to know about, shoot me a question.