Anyone that claims they have done their research and know better than their doctor, you are never going win over no matter how much information you provide them. It is like arguing with the flat earthers, it is simply a lost cause. The only thing that may "win them over" is someone close in their life suffering a terrible consequence and it becoming real to them, and for their sake, I hope that doesn't happen.
The only people left to get are those that are neutral about the vaccine but are not motivated to go out of their way to get it, and those that are worried that that they might have to take time off work if they have a rough reaction to jab and do not want to miss out on that income. For those people, I think private enterprise vaccine mandates will greatly increase the odds that they get it. I know I am going to a concert next weekend where I will need to show my proof of vaccine. I think the airlines should also start requiring it to fly.