Try a first light travel to overcome the crowds, watch pale spill over the caldera
https://sethvbhv273.brightsora.com/posts/how-to-find-a-tour-on-santorini-insider-tips-for-santorini-day-tours-and-vip-experiences-2
Try a sunrise tour to conquer the crowds, watch mild spill over the caldera, and seize serene streets earlier than the island wakes up.