Looking for Climbs that are Not Marked as Such

I am a huge fan of rolling hills rides but have ridden almost all of them so far. I like climbs too, but am running out of ones to try there too. Does anybody know of any rides that maybe are not listed as a climb but focus on it a lot in the class? Bonus points if it is taught by Cody, Ally, Tunde, or Camila! Prefer 30 min options but open to 20 min options, too!