I’ve seen one decent deal on a c class here in Denver, it was posted in the trophy garage earlier this year or end of last year. Ironically that person was from out of state. You might look for loaners too, I’ve seen them on their websites. You might try going back and forth with all the different dealers, you might have to just grind on them. Target cars in stock for awhile(cargurus site)
Another tactic is to build out your own deal and say you’ll do it for X amount.