Or you could just order a beer. You don't have to boycott a restaurant that has coke. There are only 2 choices people go with for their fountain beverage systems and its largely an arbitrary money decision that was made long before Coke went Woke.

Just drink water if there are no other choice. I guarantee you are hurting a local small business way more than you will ever harm a multinational beverage conglomerate that you will have to spend an hour googling to even understand how many beverages you would need to avoid to effectively boycott.