Try a first light excursion to overcome the crowds, watch gentle spill over the caldera
https://alexischma735.nexorafield.com/posts/top-santorini-island-tours-from-caldera-views-to-winery-tastings-and-hidden-villages
Try a first light journey to overcome the crowds, watch faded spill over the caldera, and capture serene streets earlier the island wakes up.