I would like to place an order for a new 2023 300L recommend a large dealer. Perhaps one that supports the forum?

 

Do what I did back in 2020: Go on Auto Trader to see what's available in your region. Don't be afraid to fly/drive to get it. I made a 1,000 mile round trip for the car I wanted. Flew to the airport closest to the dealer for less than $100. Dealer picked me up, completed the paperwork at the dealer then drove home. An excellent experience.