I don't have any experience with any of those but I was recommended my therapy from my Doctor. Has yours given any suggestions for your particular case? My neurologist doesn't suggest any infusions for my case but I think it's because I've responded well to injections. My advice would be to research those four and decide based on what you think you could handle or what you don't want to handle. (Like, if you're really not interested in infusions or you don't want to risk a certain side effect.) Hope things go well for you! If you ever need to talk feel free to message me (I know the diagnosis is a lot).