I just open a small window of cruise months I’m interested in and look for the overall lower base prices. Usually they just jump out because the others are so high. You can click in the upper left corner and click find a cruise and click specials, but it’s not a complete list. With the Disney + promotion there’s not a whole lot out there. I was shocked to get the 10 night July cruise at the gty rate, esp 7 months out and get main dining. I booked 3 cabins and each was nearly $3,000 less than the lowest regular price cabin. Plus it’s a bucket list.